/**
 * IMPORTANT WOODMART NOTICE: this file is a modified version of the original isotope.pkgd.js file.
 * If you update this file, ensure to re-apply fixes (see: https://github.com/metafizzy/flickity/pull/900).
 */

/*!
 * Isotope PACKAGED v3.0.6
 *
 * Licensed GPLv3 for open source use
 * or Isotope Commercial License for commercial use
 *
 * https://isotope.metafizzy.co
 * Copyright 2010-2018 Metafizzy
 */

/**
 * Bridget makes jQuery widgets
 * v2.0.1
 * MIT license
 */

/* jshint browser: true, strict: true, undef: true, unused: true */

( function( window, factory ) {
  // universal module definition
  /*jshint strict: false */ /* globals define, module, require */
  if ( typeof define == 'function' && define.amd ) {
    // AMD
    define( 'jquery-bridget/jquery-bridget',[ 'jquery' ], function( jQuery ) {
      return factory( window, jQuery );
    });
  } else if ( typeof module == 'object' && module.exports ) {
    // CommonJS
    module.exports = factory(
        window,
        require('jquery')
    );
  } else {
    // browser global
    window.jQueryBridget = factory(
        window,
        window.jQuery
    );
  }

}( window, function factory( window, jQuery ) {
  'use strict';

// ----- utils ----- //

  var arraySlice = Array.prototype.slice;

// helper function for logging errors
// $.error breaks jQuery chaining
  var console = window.console;
  var logError = typeof console == 'undefined' ? function() {} :
      function( message ) {
        console.error( message );
      };

// ----- jQueryBridget ----- //

  function jQueryBridget( namespace, PluginClass, $ ) {
    $ = $ || jQuery || window.jQuery;
    if ( !$ ) {
      return;
    }

    // add option method -> $().plugin('option', {...})
    if ( !PluginClass.prototype.option ) {
      // option setter
      PluginClass.prototype.option = function( opts ) {
        // bail out if not an object
        if ( !$.isPlainObject( opts ) ){
          return;
        }
        this.options = $.extend( true, this.options, opts );
      };
    }

    // make jQuery plugin
    $.fn[ namespace ] = function( arg0 /*, arg1 */ ) {
      if ( typeof arg0 == 'string' ) {
        // method call $().plugin( 'methodName', { options } )
        // shift arguments by 1
        var args = arraySlice.call( arguments, 1 );
        return methodCall( this, arg0, args );
      }
      // just $().plugin({ options })
      plainCall( this, arg0 );
      return this;
    };

    // $().plugin('methodName')
    function methodCall( $elems, methodName, args ) {
      var returnValue;
      var pluginMethodStr = '$().' + namespace + '("' + methodName + '")';

      $elems.each( function( i, elem ) {
        // get instance
        var instance = $.data( elem, namespace );
        if ( !instance ) {
          logError( namespace + ' not initialized. Cannot call methods, i.e. ' +
              pluginMethodStr );
          return;
        }

        var method = instance[ methodName ];
        if ( !method || methodName.charAt(0) == '_' ) {
          logError( pluginMethodStr + ' is not a valid method' );
          return;
        }

        // apply method, get return value
        var value = method.apply( instance, args );
        // set return value if value is returned, use only first value
        returnValue = returnValue === undefined ? value : returnValue;
      });

      return returnValue !== undefined ? returnValue : $elems;
    }

    function plainCall( $elems, options ) {
      $elems.each( function( i, elem ) {
        var instance = $.data( elem, namespace );
        if ( instance ) {
          // set options & init
          instance.option( options );
          instance._init();
        } else {
          // initialize new instance
          instance = new PluginClass( elem, options );
          $.data( elem, namespace, instance );
        }
      });
    }

    updateJQuery( $ );

  }

// ----- updateJQuery ----- //

// set $.bridget for v1 backwards compatibility
  function updateJQuery( $ ) {
    if ( !$ || ( $ && $.bridget ) ) {
      return;
    }
    $.bridget = jQueryBridget;
  }

  updateJQuery( jQuery || window.jQuery );

// -----  ----- //

  return jQueryBridget;

}));

/**
 * EvEmitter v1.1.0
 * Lil' event emitter
 * MIT License
 */

/* jshint unused: true, undef: true, strict: true */

( function( global, factory ) {
  // universal module definition
  /* jshint strict: false */ /* globals define, module, window */
  if ( typeof define == 'function' && define.amd ) {
    // AMD - RequireJS
    define( 'ev-emitter/ev-emitter',factory );
  } else if ( typeof module == 'object' && module.exports ) {
    // CommonJS - Browserify, Webpack
    module.exports = factory();
  } else {
    // Browser globals
    global.EvEmitter = factory();
  }

}( typeof window != 'undefined' ? window : this, function() {



  function EvEmitter() {}

  var proto = EvEmitter.prototype;

  proto.on = function( eventName, listener ) {
    if ( !eventName || !listener ) {
      return;
    }
    // set events hash
    var events = this._events = this._events || {};
    // set listeners array
    var listeners = events[ eventName ] = events[ eventName ] || [];
    // only add once
    if ( listeners.indexOf( listener ) == -1 ) {
      listeners.push( listener );
    }

    return this;
  };

  proto.once = function( eventName, listener ) {
    if ( !eventName || !listener ) {
      return;
    }
    // add event
    this.on( eventName, listener );
    // set once flag
    // set onceEvents hash
    var onceEvents = this._onceEvents = this._onceEvents || {};
    // set onceListeners object
    var onceListeners = onceEvents[ eventName ] = onceEvents[ eventName ] || {};
    // set flag
    onceListeners[ listener ] = true;

    return this;
  };

  proto.off = function( eventName, listener ) {
    var listeners = this._events && this._events[ eventName ];
    if ( !listeners || !listeners.length ) {
      return;
    }
    var index = listeners.indexOf( listener );
    if ( index != -1 ) {
      listeners.splice( index, 1 );
    }

    return this;
  };

  proto.emitEvent = function( eventName, args ) {
    var listeners = this._events && this._events[ eventName ];
    if ( !listeners || !listeners.length ) {
      return;
    }
    // copy over to avoid interference if .off() in listener
    listeners = listeners.slice(0);
    args = args || [];
    // once stuff
    var onceListeners = this._onceEvents && this._onceEvents[ eventName ];

    for ( var i=0; i < listeners.length; i++ ) {
      var listener = listeners[i]
      var isOnce = onceListeners && onceListeners[ listener ];
      if ( isOnce ) {
        // remove listener
        // remove before trigger to prevent recursion
        this.off( eventName, listener );
        // unset once flag
        delete onceListeners[ listener ];
      }
      // trigger listener
      listener.apply( this, args );
    }

    return this;
  };

  proto.allOff = function() {
    delete this._events;
    delete this._onceEvents;
  };

  return EvEmitter;

}));

/*!
 * getSize v2.0.3
 * measure size of elements
 * MIT license
 */

/* jshint browser: true, strict: true, undef: true, unused: true */
/* globals console: false */

( function( window, factory ) {
  /* jshint strict: false */ /* globals define, module */
  if ( typeof define == 'function' && define.amd ) {
    // AMD
    define( 'get-size/get-size',factory );
  } else if ( typeof module == 'object' && module.exports ) {
    // CommonJS
    module.exports = factory();
  } else {
    // browser global
    window.getSize = factory();
  }

})( window, function factory() {
  'use strict';

// -------------------------- helpers -------------------------- //

// get a number from a string, not a percentage
  function getStyleSize( value ) {
    var num = parseFloat( value );
    // not a percent like '100%', and a number
    var isValid = value.indexOf('%') == -1 && !isNaN( num );
    return isValid && num;
  }

  function noop() {}

  var logError = typeof console == 'undefined' ? noop :
      function( message ) {
        console.error( message );
      };

// -------------------------- measurements -------------------------- //

  var measurements = [
    'paddingLeft',
    'paddingRight',
    'paddingTop',
    'paddingBottom',
    'marginLeft',
    'marginRight',
    'marginTop',
    'marginBottom',
    'borderLeftWidth',
    'borderRightWidth',
    'borderTopWidth',
    'borderBottomWidth'
  ];

  var measurementsLength = measurements.length;

  function getZeroSize() {
    var size = {
      width: 0,
      height: 0,
      innerWidth: 0,
      innerHeight: 0,
      outerWidth: 0,
      outerHeight: 0
    };
    for ( var i=0; i < measurementsLength; i++ ) {
      var measurement = measurements[i];
      size[ measurement ] = 0;
    }
    return size;
  }

// -------------------------- getStyle -------------------------- //

  /**
   * getStyle, get style of element, check for Firefox bug
   * https://bugzilla.mozilla.org/show_bug.cgi?id=548397
   */
  function getStyle( elem ) {
    var style = getComputedStyle( elem );
    if ( !style ) {
      logError( 'Style returned ' + style +
          '. Are you running this code in a hidden iframe on Firefox? ' +
          'See https://bit.ly/getsizebug1' );
    }
    return style;
  }

// -------------------------- setup -------------------------- //

  var isSetup = false;

  var isBoxSizeOuter;

  /**
   * setup
   * check isBoxSizerOuter
   * do on first getSize() rather than on page load for Firefox bug
   */
  function setup() {
    // setup once
    if ( isSetup ) {
      return;
    }
    isSetup = true;

    // -------------------------- box sizing -------------------------- //

    /**
     * Chrome & Safari measure the outer-width on style.width on border-box elems
     * IE11 & Firefox<29 measures the inner-width
     */
    var div = document.createElement('div');
    div.style.width = '200px';
    div.style.padding = '1px 2px 3px 4px';
    div.style.borderStyle = 'solid';
    div.style.borderWidth = '1px 2px 3px 4px';
    div.style.boxSizing = 'border-box';

    var body = document.body || document.documentElement;
    body.appendChild( div );
    var style = getStyle( div );
    // round value for browser zoom. desandro/masonry#928
    isBoxSizeOuter = Math.round( getStyleSize( style.width ) ) == 200;
    getSize.isBoxSizeOuter = isBoxSizeOuter;

    body.removeChild( div );
  }

// -------------------------- getSize -------------------------- //

  function getSize( elem ) {
    setup();

    // use querySeletor if elem is string
    if ( typeof elem == 'string' ) {
      elem = document.querySelector( elem );
    }

    // do not proceed on non-objects
    if ( !elem || typeof elem != 'object' || !elem.nodeType ) {
      return;
    }

    var style = getStyle( elem );

    // if hidden, everything is 0
    if ( style.display == 'none' ) {
      return getZeroSize();
    }

    var size = {};
    size.width = elem.offsetWidth;
    size.height = elem.offsetHeight;

    var isBorderBox = size.isBorderBox = style.boxSizing == 'border-box';

    // get all measurements
    for ( var i=0; i < measurementsLength; i++ ) {
      var measurement = measurements[i];
      var value = style[ measurement ];
      var num = parseFloat( value );
      // any 'auto', 'medium' value will be 0
      size[ measurement ] = !isNaN( num ) ? num : 0;
    }

    var paddingWidth = size.paddingLeft + size.paddingRight;
    var paddingHeight = size.paddingTop + size.paddingBottom;
    var marginWidth = size.marginLeft + size.marginRight;
    var marginHeight = size.marginTop + size.marginBottom;
    var borderWidth = size.borderLeftWidth + size.borderRightWidth;
    var borderHeight = size.borderTopWidth + size.borderBottomWidth;

    var isBorderBoxSizeOuter = isBorderBox && isBoxSizeOuter;

    // overwrite width and height if we can get it from style
    var styleWidth = getStyleSize( style.width );
    if ( styleWidth !== false ) {
      size.width = styleWidth +
          // add padding and border unless it's already including it
          ( isBorderBoxSizeOuter ? 0 : paddingWidth + borderWidth );
    }

    var styleHeight = getStyleSize( style.height );
    if ( styleHeight !== false ) {
      size.height = styleHeight +
          // add padding and border unless it's already including it
          ( isBorderBoxSizeOuter ? 0 : paddingHeight + borderHeight );
    }

    size.innerWidth = size.width - ( paddingWidth + borderWidth );
    size.innerHeight = size.height - ( paddingHeight + borderHeight );

    size.outerWidth = size.width + marginWidth;
    size.outerHeight = size.height + marginHeight;

    return size;
  }

  return getSize;

});

/**
 * matchesSelector v2.0.2
 * matchesSelector( element, '.selector' )
 * MIT license
 */

/*jshint browser: true, strict: true, undef: true, unused: true */

( function( window, factory ) {
  /*global define: false, module: false */
  'use strict';
  // universal module definition
  if ( typeof define == 'function' && define.amd ) {
    // AMD
    define( 'desandro-matches-selector/matches-selector',factory );
  } else if ( typeof module == 'object' && module.exports ) {
    // CommonJS
    module.exports = factory();
  } else {
    // browser global
    window.matchesSelector = factory();
  }

}( window, function factory() {
  'use strict';

  var matchesMethod = ( function() {
    var ElemProto = window.Element.prototype;
    // check for the standard method name first
    if ( ElemProto.matches ) {
      return 'matches';
    }
    // check un-prefixed
    if ( ElemProto.matchesSelector ) {
      return 'matchesSelector';
    }
    // check vendor prefixes
    var prefixes = [ 'webkit', 'moz', 'ms', 'o' ];

    for ( var i=0; i < prefixes.length; i++ ) {
      var prefix = prefixes[i];
      var method = prefix + 'MatchesSelector';
      if ( ElemProto[ method ] ) {
        return method;
      }
    }
  })();

  return function matchesSelector( elem, selector ) {
    return elem[ matchesMethod ]( selector );
  };

}));

/**
 * Fizzy UI utils v2.0.7
 * MIT license
 */

/*jshint browser: true, undef: true, unused: true, strict: true */

( function( window, factory ) {
  // universal module definition
  /*jshint strict: false */ /*globals define, module, require */

  if ( typeof define == 'function' && define.amd ) {
    // AMD
    define( 'fizzy-ui-utils/utils',[
      'desandro-matches-selector/matches-selector'
    ], function( matchesSelector ) {
      return factory( window, matchesSelector );
    });
  } else if ( typeof module == 'object' && module.exports ) {
    // CommonJS
    module.exports = factory(
        window,
        require('desandro-matches-selector')
    );
  } else {
    // browser global
    window.fizzyUIUtils = factory(
        window,
        window.matchesSelector
    );
  }

}( window, function factory( window, matchesSelector ) {



  var utils = {};

// ----- extend ----- //

// extends objects
  utils.extend = function( a, b ) {
    for ( var prop in b ) {
      a[ prop ] = b[ prop ];
    }
    return a;
  };

// ----- modulo ----- //

  utils.modulo = function( num, div ) {
    return ( ( num % div ) + div ) % div;
  };

// ----- makeArray ----- //

  var arraySlice = Array.prototype.slice;

// turn element or nodeList into an array
  utils.makeArray = function( obj ) {
    if ( Array.isArray( obj ) ) {
      // use object if already an array
      return obj;
    }
    // return empty array if undefined or null. #6
    if ( obj === null || obj === undefined ) {
      return [];
    }

    var isArrayLike = typeof obj == 'object' && typeof obj.length == 'number';
    if ( isArrayLike ) {
      // convert nodeList to array
      return arraySlice.call( obj );
    }

    // array of single index
    return [ obj ];
  };

// ----- removeFrom ----- //

  utils.removeFrom = function( ary, obj ) {
    var index = ary.indexOf( obj );
    if ( index != -1 ) {
      ary.splice( index, 1 );
    }
  };

// ----- getParent ----- //

  utils.getParent = function( elem, selector ) {
    while ( elem.parentNode && elem != document.body ) {
      elem = elem.parentNode;
      if ( matchesSelector( elem, selector ) ) {
        return elem;
      }
    }
  };

// ----- getQueryElement ----- //

// use element as selector string
  utils.getQueryElement = function( elem ) {
    if ( typeof elem == 'string' ) {
      return document.querySelector( elem );
    }
    return elem;
  };

// ----- handleEvent ----- //

// enable .ontype to trigger from .addEventListener( elem, 'type' )
  utils.handleEvent = function( event ) {
    var method = 'on' + event.type;
    if ( this[ method ] ) {
      this[ method ]( event );
    }
  };

// ----- filterFindElements ----- //

  utils.filterFindElements = function( elems, selector ) {
    // make array of elems
    elems = utils.makeArray( elems );
    var ffElems = [];
    var isElement = function (elem) {
      return (
        typeof HTMLElement === "object" ? elem instanceof HTMLElement : elem && typeof elem === "object" && elem !== null && elem.nodeType === 1 && typeof elem.nodeName === "string"
      );
    };
    elems.forEach( function( elem ) {
      // check that elem is an actual element
      if ( !( isElement(elem) ) ) {
        return;
      }
      // add elem if no selector
      if ( !selector ) {
        ffElems.push( elem );
        return;
      }
      // filter & find items if we have a selector
      // filter
      if ( matchesSelector( elem, selector ) ) {
        ffElems.push( elem );
      }
      // find children
      var childElems = elem.querySelectorAll( selector );
      // concat childElems to filterFound array
      for ( var i=0; i < childElems.length; i++ ) {
        ffElems.push( childElems[i] );
      }
    });

    return ffElems;
  };

// ----- debounceMethod ----- //

  utils.debounceMethod = function( _class, methodName, threshold ) {
    threshold = threshold || 100;
    // original method
    var method = _class.prototype[ methodName ];
    var timeoutName = methodName + 'Timeout';

    _class.prototype[ methodName ] = function() {
      var timeout = this[ timeoutName ];
      clearTimeout( timeout );

      var args = arguments;
      var _this = this;
      this[ timeoutName ] = setTimeout( function() {
        method.apply( _this, args );
        delete _this[ timeoutName ];
      }, threshold );
    };
  };

// ----- docReady ----- //

  utils.docReady = function( callback ) {
    var readyState = document.readyState;
    if ( readyState == 'complete' || readyState == 'interactive' ) {
      // do async to allow for other scripts to run. metafizzy/flickity#441
      setTimeout( callback );
    } else {
      document.addEventListener( 'DOMContentLoaded', callback );
    }
  };

// ----- htmlInit ----- //

// http://jamesroberts.name/blog/2010/02/22/string-functions-for-javascript-trim-to-camel-case-to-dashed-and-to-underscore/
  utils.toDashed = function( str ) {
    return str.replace( /(.)([A-Z])/g, function( match, $1, $2 ) {
      return $1 + '-' + $2;
    }).toLowerCase();
  };

  var console = window.console;
  /**
   * allow user to initialize classes via [data-namespace] or .js-namespace class
   * htmlInit( Widget, 'widgetName' )
   * options are parsed from data-namespace-options
   */
  utils.htmlInit = function( WidgetClass, namespace ) {
    utils.docReady( function() {
      var dashedNamespace = utils.toDashed( namespace );
      var dataAttr = 'data-' + dashedNamespace;
      var dataAttrElems = document.querySelectorAll( '[' + dataAttr + ']' );
      var jsDashElems = document.querySelectorAll( '.js-' + dashedNamespace );
      var elems = utils.makeArray( dataAttrElems )
          .concat( utils.makeArray( jsDashElems ) );
      var dataOptionsAttr = dataAttr + '-options';
      var jQuery = window.jQuery;

      elems.forEach( function( elem ) {
        var attr = elem.getAttribute( dataAttr ) ||
            elem.getAttribute( dataOptionsAttr );
        var options;
        try {
          options = attr && JSON.parse( attr );
        } catch ( error ) {
          // log error, do not initialize
          if ( console ) {
            console.error( 'Error parsing ' + dataAttr + ' on ' + elem.className +
                ': ' + error );
          }
          return;
        }
        // initialize
        var instance = new WidgetClass( elem, options );
        // make available via $().data('namespace')
        if ( jQuery ) {
          jQuery.data( elem, namespace, instance );
        }
      });

    });
  };

// -----  ----- //

  return utils;

}));

/**
 * Outlayer Item
 */

( function( window, factory ) {
  // universal module definition
  /* jshint strict: false */ /* globals define, module, require */
  if ( typeof define == 'function' && define.amd ) {
    // AMD - RequireJS
    define( 'outlayer/item',[
          'ev-emitter/ev-emitter',
          'get-size/get-size'
        ],
        factory
    );
  } else if ( typeof module == 'object' && module.exports ) {
    // CommonJS - Browserify, Webpack
    module.exports = factory(
        require('ev-emitter'),
        require('get-size')
    );
  } else {
    // browser global
    window.Outlayer = {};
    window.Outlayer.Item = factory(
        window.EvEmitter,
        window.getSize
    );
  }

}( window, function factory( EvEmitter, getSize ) {
  'use strict';

// ----- helpers ----- //

  function isEmptyObj( obj ) {
    for ( var prop in obj ) {
      return false;
    }
    prop = null;
    return true;
  }

// -------------------------- CSS3 support -------------------------- //


  var docElemStyle = document.documentElement.style;

  var transitionProperty = typeof docElemStyle.transition == 'string' ?
      'transition' : 'WebkitTransition';
  var transformProperty = typeof docElemStyle.transform == 'string' ?
      'transform' : 'WebkitTransform';

  var transitionEndEvent = {
    WebkitTransition: 'webkitTransitionEnd',
    transition: 'transitionend'
  }[ transitionProperty ];

// cache all vendor properties that could have vendor prefix
  var vendorProperties = {
    transform: transformProperty,
    transition: transitionProperty,
    transitionDuration: transitionProperty + 'Duration',
    transitionProperty: transitionProperty + 'Property',
    transitionDelay: transitionProperty + 'Delay'
  };

// -------------------------- Item -------------------------- //

  function Item( element, layout ) {
    if ( !element ) {
      return;
    }

    this.element = element;
    // parent layout class, i.e. Masonry, Isotope, or Packery
    this.layout = layout;
    this.position = {
      x: 0,
      y: 0
    };

    this._create();
  }

// inherit EvEmitter
  var proto = Item.prototype = Object.create( EvEmitter.prototype );
  proto.constructor = Item;

  proto._create = function() {
    // transition objects
    this._transn = {
      ingProperties: {},
      clean: {},
      onEnd: {}
    };

    this.css({
      position: 'absolute'
    });
  };

// trigger specified handler for event type
  proto.handleEvent = function( event ) {
    var method = 'on' + event.type;
    if ( this[ method ] ) {
      this[ method ]( event );
    }
  };

  proto.getSize = function() {
    this.size = getSize( this.element );
  };

  /**
   * apply CSS styles to element
   * @param {Object} style
   */
  proto.css = function( style ) {
    var elemStyle = this.element.style;

    for ( var prop in style ) {
      // use vendor property if available
      var supportedProp = vendorProperties[ prop ] || prop;
      elemStyle[ supportedProp ] = style[ prop ];
    }
  };

  // measure position, and sets it
  proto.getPosition = function() {
    var style = getComputedStyle( this.element );
    var isOriginLeft = this.layout._getOption('originLeft');
    var isOriginTop = this.layout._getOption('originTop');
    var xValue = style[ isOriginLeft ? 'left' : 'right' ];
    var yValue = style[ isOriginTop ? 'top' : 'bottom' ];
    var x = parseFloat( xValue );
    var y = parseFloat( yValue );
    // convert percent to pixels
    var layoutSize = this.layout.size;
    if ( xValue.indexOf('%') != -1 ) {
      x = ( x / 100 ) * layoutSize.width;
    }
    if ( yValue.indexOf('%') != -1 ) {
      y = ( y / 100 ) * layoutSize.height;
    }
    // clean up 'auto' or other non-integer values
    x = isNaN( x ) ? 0 : x;
    y = isNaN( y ) ? 0 : y;
    // remove padding from measurement
    x -= isOriginLeft ? layoutSize.paddingLeft : layoutSize.paddingRight;
    y -= isOriginTop ? layoutSize.paddingTop : layoutSize.paddingBottom;

    this.position.x = x;
    this.position.y = y;
  };

// set settled position, apply padding
  proto.layoutPosition = function() {
    var layoutSize = this.layout.size;
    var style = {};
    var isOriginLeft = this.layout._getOption('originLeft');
    var isOriginTop = this.layout._getOption('originTop');

    // x
    var xPadding = isOriginLeft ? 'paddingLeft' : 'paddingRight';
    var xProperty = isOriginLeft ? 'left' : 'right';
    var xResetProperty = isOriginLeft ? 'right' : 'left';

    var x = this.position.x + layoutSize[ xPadding ];
    // set in percentage or pixels
    style[ xProperty ] = this.getXValue( x );
    // reset other property
    style[ xResetProperty ] = '';

    // y
    var yPadding = isOriginTop ? 'paddingTop' : 'paddingBottom';
    var yProperty = isOriginTop ? 'top' : 'bottom';
    var yResetProperty = isOriginTop ? 'bottom' : 'top';

    var y = this.position.y + layoutSize[ yPadding ];
    // set in percentage or pixels
    style[ yProperty ] = this.getYValue( y );
    // reset other property
    style[ yResetProperty ] = '';

    this.css( style );
    this.emitEvent( 'layout', [ this ] );
  };

  proto.getXValue = function( x ) {
    var isHorizontal = this.layout._getOption('horizontal');
    return this.layout.options.percentPosition && !isHorizontal ?
        ( ( x / this.layout.size.width ) * 100 ) + '%' : x + 'px';
  };

  proto.getYValue = function( y ) {
    var isHorizontal = this.layout._getOption('horizontal');
    return this.layout.options.percentPosition && isHorizontal ?
        ( ( y / this.layout.size.height ) * 100 ) + '%' : y + 'px';
  };

  proto._transitionTo = function( x, y ) {
    this.getPosition();
    // get current x & y from top/left
    var curX = this.position.x;
    var curY = this.position.y;

    var didNotMove = x == this.position.x && y == this.position.y;

    // save end position
    this.setPosition( x, y );

    // if did not move and not transitioning, just go to layout
    if ( didNotMove && !this.isTransitioning ) {
      this.layoutPosition();
      return;
    }

    var transX = x - curX;
    var transY = y - curY;
    var transitionStyle = {};
    transitionStyle.transform = this.getTranslate( transX, transY );

    this.transition({
      to: transitionStyle,
      onTransitionEnd: {
        transform: this.layoutPosition
      },
      isCleaning: true
    });
  };

  proto.getTranslate = function( x, y ) {
    // flip cooridinates if origin on right or bottom
    var isOriginLeft = this.layout._getOption('originLeft');
    var isOriginTop = this.layout._getOption('originTop');
    x = isOriginLeft ? x : -x;
    y = isOriginTop ? y : -y;
    return 'translate3d(' + x + 'px, ' + y + 'px, 0)';
  };

// non transition + transform support
  proto.goTo = function( x, y ) {
    this.setPosition( x, y );
    this.layoutPosition();
  };

  proto.moveTo = proto._transitionTo;

  proto.setPosition = function( x, y ) {
    this.position.x = parseFloat( x );
    this.position.y = parseFloat( y );
  };

// ----- transition ----- //

  /**
   * @param {Object} style - CSS
   * @param {Function} onTransitionEnd
   */

// non transition, just trigger callback
  proto._nonTransition = function( args ) {
    this.css( args.to );
    if ( args.isCleaning ) {
      this._removeStyles( args.to );
    }
    for ( var prop in args.onTransitionEnd ) {
      args.onTransitionEnd[ prop ].call( this );
    }
  };

  /**
   * proper transition
   * @param {Object} args - arguments
   *   @param {Object} to - style to transition to
   *   @param {Object} from - style to start transition from
   *   @param {Boolean} isCleaning - removes transition styles after transition
   *   @param {Function} onTransitionEnd - callback
   */
  proto.transition = function( args ) {
    // redirect to nonTransition if no transition duration
    if ( !parseFloat( this.layout.options.transitionDuration ) ) {
      this._nonTransition( args );
      return;
    }

    var _transition = this._transn;
    // keep track of onTransitionEnd callback by css property
    for ( var prop in args.onTransitionEnd ) {
      _transition.onEnd[ prop ] = args.onTransitionEnd[ prop ];
    }
    // keep track of properties that are transitioning
    for ( prop in args.to ) {
      _transition.ingProperties[ prop ] = true;
      // keep track of properties to clean up when transition is done
      if ( args.isCleaning ) {
        _transition.clean[ prop ] = true;
      }
    }

    // set from styles
    if ( args.from ) {
      this.css( args.from );
      // force redraw. http://blog.alexmaccaw.com/css-transitions
      var h = this.element.offsetHeight;
      // hack for JSHint to hush about unused var
      h = null;
    }
    // enable transition
    this.enableTransition( args.to );
    // set styles that are transitioning
    this.css( args.to );

    this.isTransitioning = true;

  };

// dash before all cap letters, including first for
// WebkitTransform => -webkit-transform
  function toDashedAll( str ) {
    return str.replace( /([A-Z])/g, function( $1 ) {
      return '-' + $1.toLowerCase();
    });
  }

  var transitionProps = 'opacity,' + toDashedAll( transformProperty );

  proto.enableTransition = function(/* style */) {
    // HACK changing transitionProperty during a transition
    // will cause transition to jump
    if ( this.isTransitioning ) {
      return;
    }

    // make `transition: foo, bar, baz` from style object
    // HACK un-comment this when enableTransition can work
    // while a transition is happening
    // var transitionValues = [];
    // for ( var prop in style ) {
    //   // dash-ify camelCased properties like WebkitTransition
    //   prop = vendorProperties[ prop ] || prop;
    //   transitionValues.push( toDashedAll( prop ) );
    // }
    // munge number to millisecond, to match stagger
    var duration = this.layout.options.transitionDuration;
    duration = typeof duration == 'number' ? duration + 'ms' : duration;
    // enable transition styles
    this.css({
      transitionProperty: transitionProps,
      transitionDuration: duration,
      transitionDelay: this.staggerDelay || 0
    });
    // listen for transition end event
    this.element.addEventListener( transitionEndEvent, this, false );
  };

// ----- events ----- //

  proto.onwebkitTransitionEnd = function( event ) {
    this.ontransitionend( event );
  };

  proto.onotransitionend = function( event ) {
    this.ontransitionend( event );
  };

// properties that I munge to make my life easier
  var dashedVendorProperties = {
    '-webkit-transform': 'transform'
  };

  proto.ontransitionend = function( event ) {
    // disregard bubbled events from children
    if ( event.target !== this.element ) {
      return;
    }
    var _transition = this._transn;
    // get property name of transitioned property, convert to prefix-free
    var propertyName = dashedVendorProperties[ event.propertyName ] || event.propertyName;

    // remove property that has completed transitioning
    delete _transition.ingProperties[ propertyName ];
    // check if any properties are still transitioning
    if ( isEmptyObj( _transition.ingProperties ) ) {
      // all properties have completed transitioning
      this.disableTransition();
    }
    // clean style
    if ( propertyName in _transition.clean ) {
      // clean up style
      this.element.style[ event.propertyName ] = '';
      delete _transition.clean[ propertyName ];
    }
    // trigger onTransitionEnd callback
    if ( propertyName in _transition.onEnd ) {
      var onTransitionEnd = _transition.onEnd[ propertyName ];
      onTransitionEnd.call( this );
      delete _transition.onEnd[ propertyName ];
    }

    this.emitEvent( 'transitionEnd', [ this ] );
  };

  proto.disableTransition = function() {
    this.removeTransitionStyles();
    this.element.removeEventListener( transitionEndEvent, this, false );
    this.isTransitioning = false;
  };

  /**
   * removes style property from element
   * @param {Object} style
   **/
  proto._removeStyles = function( style ) {
    // clean up transition styles
    var cleanStyle = {};
    for ( var prop in style ) {
      cleanStyle[ prop ] = '';
    }
    this.css( cleanStyle );
  };

  var cleanTransitionStyle = {
    transitionProperty: '',
    transitionDuration: '',
    transitionDelay: ''
  };

  proto.removeTransitionStyles = function() {
    // remove transition
    this.css( cleanTransitionStyle );
  };

// ----- stagger ----- //

  proto.stagger = function( delay ) {
    delay = isNaN( delay ) ? 0 : delay;
    this.staggerDelay = delay + 'ms';
  };

// ----- show/hide/remove ----- //

// remove element from DOM
  proto.removeElem = function() {
    this.element.parentNode.removeChild( this.element );
    // remove display: none
    this.css({ display: '' });
    this.emitEvent( 'remove', [ this ] );
  };

  proto.remove = function() {
    // just remove element if no transition support or no transition
    if ( !transitionProperty || !parseFloat( this.layout.options.transitionDuration ) ) {
      this.removeElem();
      return;
    }

    // start transition
    this.once( 'transitionEnd', function() {
      this.removeElem();
    });
    this.hide();
  };

  proto.reveal = function() {
    delete this.isHidden;
    // remove display: none
    this.css({ display: '' });

    var options = this.layout.options;

    var onTransitionEnd = {};
    var transitionEndProperty = this.getHideRevealTransitionEndProperty('visibleStyle');
    onTransitionEnd[ transitionEndProperty ] = this.onRevealTransitionEnd;

    this.transition({
      from: options.hiddenStyle,
      to: options.visibleStyle,
      isCleaning: true,
      onTransitionEnd: onTransitionEnd
    });
  };

  proto.onRevealTransitionEnd = function() {
    // check if still visible
    // during transition, item may have been hidden
    if ( !this.isHidden ) {
      this.emitEvent('reveal');
    }
  };

  /**
   * get style property use for hide/reveal transition end
   * @param {String} styleProperty - hiddenStyle/visibleStyle
   * @returns {String}
   */
  proto.getHideRevealTransitionEndProperty = function( styleProperty ) {
    var optionStyle = this.layout.options[ styleProperty ];
    // use opacity
    if ( optionStyle.opacity ) {
      return 'opacity';
    }
    // get first property
    for ( var prop in optionStyle ) {
      return prop;
    }
  };

  proto.hide = function() {
    // set flag
    this.isHidden = true;
    // remove display: none
    this.css({ display: '' });

    var options = this.layout.options;

    var onTransitionEnd = {};
    var transitionEndProperty = this.getHideRevealTransitionEndProperty('hiddenStyle');
    onTransitionEnd[ transitionEndProperty ] = this.onHideTransitionEnd;

    this.transition({
      from: options.visibleStyle,
      to: options.hiddenStyle,
      // keep hidden stuff hidden
      isCleaning: true,
      onTransitionEnd: onTransitionEnd
    });
  };

  proto.onHideTransitionEnd = function() {
    // check if still hidden
    // during transition, item may have been un-hidden
    if ( this.isHidden ) {
      this.css({ display: 'none' });
      this.emitEvent('hide');
    }
  };

  proto.destroy = function() {
    this.css({
      position: '',
      left: '',
      right: '',
      top: '',
      bottom: '',
      transition: '',
      transform: ''
    });
  };

  return Item;

}));

/*!
 * Outlayer v2.1.1
 * the brains and guts of a layout library
 * MIT license
 */

( function( window, factory ) {
  'use strict';
  // universal module definition
  /* jshint strict: false */ /* globals define, module, require */
  if ( typeof define == 'function' && define.amd ) {
    // AMD - RequireJS
    define( 'outlayer/outlayer',[
          'ev-emitter/ev-emitter',
          'get-size/get-size',
          'fizzy-ui-utils/utils',
          './item'
        ],
        function( EvEmitter, getSize, utils, Item ) {
          return factory( window, EvEmitter, getSize, utils, Item);
        }
    );
  } else if ( typeof module == 'object' && module.exports ) {
    // CommonJS - Browserify, Webpack
    module.exports = factory(
        window,
        require('ev-emitter'),
        require('get-size'),
        require('fizzy-ui-utils'),
        require('./item')
    );
  } else {
    // browser global
    window.Outlayer = factory(
        window,
        window.EvEmitter,
        window.getSize,
        window.fizzyUIUtils,
        window.Outlayer.Item
    );
  }

}( window, function factory( window, EvEmitter, getSize, utils, Item ) {
  'use strict';

// ----- vars ----- //

  var console = window.console;
  var jQuery = window.jQuery;
  var noop = function() {};

// -------------------------- Outlayer -------------------------- //

// globally unique identifiers
  var GUID = 0;
// internal store of all Outlayer intances
  var instances = {};


  /**
   * @param {Element, String} element
   * @param {Object} options
   * @constructor
   */
  function Outlayer( element, options ) {
    var queryElement = utils.getQueryElement( element );
    if ( !queryElement ) {
      if ( console ) {
        console.error( 'Bad element for ' + this.constructor.namespace +
            ': ' + ( queryElement || element ) );
      }
      return;
    }
    this.element = queryElement;
    // add jQuery
    if ( jQuery ) {
      this.$element = jQuery( this.element );
    }

    // options
    this.options = utils.extend( {}, this.constructor.defaults );
    this.option( options );

    // add id for Outlayer.getFromElement
    var id = ++GUID;
    this.element.outlayerGUID = id; // expando
    instances[ id ] = this; // associate via id

    // kick it off
    this._create();

    var isInitLayout = this._getOption('initLayout');
    if ( isInitLayout ) {
      this.layout();
    }
  }

// settings are for internal use only
  Outlayer.namespace = 'outlayer';
  Outlayer.Item = Item;

// default options
  Outlayer.defaults = {
    containerStyle: {
      position: 'relative'
    },
    initLayout: true,
    originLeft: true,
    originTop: true,
    resize: true,
    resizeContainer: true,
    // item options
    transitionDuration: '0.4s',
    hiddenStyle: {
      opacity: 0,
      transform: 'scale(0.001)'
    },
    visibleStyle: {
      opacity: 1,
      transform: 'scale(1)'
    }
  };

  var proto = Outlayer.prototype;
// inherit EvEmitter
  utils.extend( proto, EvEmitter.prototype );

  /**
   * set options
   * @param {Object} opts
   */
  proto.option = function( opts ) {
    utils.extend( this.options, opts );
  };

  /**
   * get backwards compatible option value, check old name
   */
  proto._getOption = function( option ) {
    var oldOption = this.constructor.compatOptions[ option ];
    return oldOption && this.options[ oldOption ] !== undefined ?
        this.options[ oldOption ] : this.options[ option ];
  };

  Outlayer.compatOptions = {
    // currentName: oldName
    initLayout: 'isInitLayout',
    horizontal: 'isHorizontal',
    layoutInstant: 'isLayoutInstant',
    originLeft: 'isOriginLeft',
    originTop: 'isOriginTop',
    resize: 'isResizeBound',
    resizeContainer: 'isResizingContainer'
  };

  proto._create = function() {
    // get items from children
    this.reloadItems();
    // elements that affect layout, but are not laid out
    this.stamps = [];
    this.stamp( this.options.stamp );
    // set container style
    utils.extend( this.element.style, this.options.containerStyle );

    // bind resize method
    var canBindResize = this._getOption('resize');
    if ( canBindResize ) {
      this.bindResize();
    }
  };

// goes through all children again and gets bricks in proper order
  proto.reloadItems = function() {
    // collection of item elements
    this.items = this._itemize( this.element.children );
  };


  /**
   * turn elements into Outlayer.Items to be used in layout
   * @param {Array or NodeList or HTMLElement} elems
   * @returns {Array} items - collection of new Outlayer Items
   */
  proto._itemize = function( elems ) {

    var itemElems = this._filterFindItemElements( elems );
    var Item = this.constructor.Item;

    // create new Outlayer Items for collection
    var items = [];
    for ( var i=0; i < itemElems.length; i++ ) {
      var elem = itemElems[i];
      var item = new Item( elem, this );
      items.push( item );
    }

    return items;
  };

  /**
   * get item elements to be used in layout
   * @param {Array or NodeList or HTMLElement} elems
   * @returns {Array} items - item elements
   */
  proto._filterFindItemElements = function( elems ) {
    return utils.filterFindElements( elems, this.options.itemSelector );
  };

  /**
   * getter method for getting item elements
   * @returns {Array} elems - collection of item elements
   */
  proto.getItemElements = function() {
    return this.items.map( function( item ) {
      return item.element;
    });
  };

// ----- init & layout ----- //

  /**
   * lays out all items
   */
  proto.layout = function() {
    this._resetLayout();
    this._manageStamps();

    // don't animate first layout
    var layoutInstant = this._getOption('layoutInstant');
    var isInstant = layoutInstant !== undefined ?
        layoutInstant : !this._isLayoutInited;
    this.layoutItems( this.items, isInstant );

    // flag for initalized
    this._isLayoutInited = true;
  };

// _init is alias for layout
  proto._init = proto.layout;

  /**
   * logic before any new layout
   */
  proto._resetLayout = function() {
    this.getSize();
  };


  proto.getSize = function() {
    this.size = getSize( this.element );
  };

  /**
   * get measurement from option, for columnWidth, rowHeight, gutter
   * if option is String -> get element from selector string, & get size of element
   * if option is Element -> get size of element
   * else use option as a number
   *
   * @param {String} measurement
   * @param {String} size - width or height
   * @private
   */
  proto._getMeasurement = function( measurement, size ) {
    var option = this.options[ measurement ];
    var elem;
    if ( !option ) {
      // default to 0
      this[ measurement ] = 0;
    } else {
      // use option as an element
      if ( typeof option == 'string' ) {
        elem = this.element.querySelector( option );
      } else if ( option instanceof HTMLElement ) {
        elem = option;
      }
      // use size of element, if element
      this[ measurement ] = elem ? getSize( elem )[ size ] : option;
    }
  };

  /**
   * layout a collection of item elements
   * @api public
   */
  proto.layoutItems = function( items, isInstant ) {
    items = this._getItemsForLayout( items );

    this._layoutItems( items, isInstant );

    this._postLayout();
  };

  /**
   * get the items to be laid out
   * you may want to skip over some items
   * @param {Array} items
   * @returns {Array} items
   */
  proto._getItemsForLayout = function( items ) {
    return items.filter( function( item ) {
      return !item.isIgnored;
    });
  };

  /**
   * layout items
   * @param {Array} items
   * @param {Boolean} isInstant
   */
  proto._layoutItems = function( items, isInstant ) {
    this._emitCompleteOnItems( 'layout', items );

    if ( !items || !items.length ) {
      // no items, emit event with empty array
      return;
    }

    var queue = [];

    items.forEach( function( item ) {
      // get x/y object from method
      var position = this._getItemLayoutPosition( item );
      // enqueue
      position.item = item;
      position.isInstant = isInstant || item.isLayoutInstant;
      queue.push( position );
    }, this );

    this._processLayoutQueue( queue );
  };

  /**
   * get item layout position
   * @param {Outlayer.Item} item
   * @returns {Object} x and y position
   */
  proto._getItemLayoutPosition = function( /* item */ ) {
    return {
      x: 0,
      y: 0
    };
  };

  /**
   * iterate over array and position each item
   * Reason being - separating this logic prevents 'layout invalidation'
   * thx @paul_irish
   * @param {Array} queue
   */
  proto._processLayoutQueue = function( queue ) {
    this.updateStagger();
    queue.forEach( function( obj, i ) {
      this._positionItem( obj.item, obj.x, obj.y, obj.isInstant, i );
    }, this );
  };

// set stagger from option in milliseconds number
  proto.updateStagger = function() {
    var stagger = this.options.stagger;
    if ( stagger === null || stagger === undefined ) {
      this.stagger = 0;
      return;
    }
    this.stagger = getMilliseconds( stagger );
    return this.stagger;
  };

  /**
   * Sets position of item in DOM
   * @param {Outlayer.Item} item
   * @param {Number} x - horizontal position
   * @param {Number} y - vertical position
   * @param {Boolean} isInstant - disables transitions
   */
  proto._positionItem = function( item, x, y, isInstant, i ) {
    if ( isInstant ) {
      // if not transition, just set CSS
      item.goTo( x, y );
    } else {
      item.stagger( i * this.stagger );
      item.moveTo( x, y );
    }
  };

  /**
   * Any logic you want to do after each layout,
   * i.e. size the container
   */
  proto._postLayout = function() {
    this.resizeContainer();
  };

  proto.resizeContainer = function() {
    var isResizingContainer = this._getOption('resizeContainer');
    if ( !isResizingContainer ) {
      return;
    }
    var size = this._getContainerSize();
    if ( size ) {
      this._setContainerMeasure( size.width, true );
      this._setContainerMeasure( size.height, false );
    }
  };

  /**
   * Sets width or height of container if returned
   * @returns {Object} size
   *   @param {Number} width
   *   @param {Number} height
   */
  proto._getContainerSize = noop;

  /**
   * @param {Number} measure - size of width or height
   * @param {Boolean} isWidth
   */
  proto._setContainerMeasure = function( measure, isWidth ) {
    if ( measure === undefined ) {
      return;
    }

    var elemSize = this.size;
    // add padding and border width if border box
    if ( elemSize.isBorderBox ) {
      measure += isWidth ? elemSize.paddingLeft + elemSize.paddingRight +
          elemSize.borderLeftWidth + elemSize.borderRightWidth :
          elemSize.paddingBottom + elemSize.paddingTop +
          elemSize.borderTopWidth + elemSize.borderBottomWidth;
    }

    measure = Math.max( measure, 0 );
    this.element.style[ isWidth ? 'width' : 'height' ] = measure + 'px';
  };

  /**
   * emit eventComplete on a collection of items events
   * @param {String} eventName
   * @param {Array} items - Outlayer.Items
   */
  proto._emitCompleteOnItems = function( eventName, items ) {
    var _this = this;
    function onComplete() {
      _this.dispatchEvent( eventName + 'Complete', null, [ items ] );
    }

    var count = items.length;
    if ( !items || !count ) {
      onComplete();
      return;
    }

    var doneCount = 0;
    function tick() {
      doneCount++;
      if ( doneCount == count ) {
        onComplete();
      }
    }

    // bind callback
    items.forEach( function( item ) {
      item.once( eventName, tick );
    });
  };

  /**
   * emits events via EvEmitter and jQuery events
   * @param {String} type - name of event
   * @param {Event} event - original event
   * @param {Array} args - extra arguments
   */
  proto.dispatchEvent = function( type, event, args ) {
    // add original event to arguments
    var emitArgs = event ? [ event ].concat( args ) : args;
    this.emitEvent( type, emitArgs );

    if ( jQuery ) {
      // set this.$element
      this.$element = this.$element || jQuery( this.element );
      if ( event ) {
        // create jQuery event
        var $event = jQuery.Event( event );
        $event.type = type;
        this.$element.trigger( $event, args );
      } else {
        // just trigger with type if no event available
        this.$element.trigger( type, args );
      }
    }
  };

// -------------------------- ignore & stamps -------------------------- //


  /**
   * keep item in collection, but do not lay it out
   * ignored items do not get skipped in layout
   * @param {Element} elem
   */
  proto.ignore = function( elem ) {
    var item = this.getItem( elem );
    if ( item ) {
      item.isIgnored = true;
    }
  };

  /**
   * return item to layout collection
   * @param {Element} elem
   */
  proto.unignore = function( elem ) {
    var item = this.getItem( elem );
    if ( item ) {
      delete item.isIgnored;
    }
  };

  /**
   * adds elements to stamps
   * @param {NodeList, Array, Element, or String} elems
   */
  proto.stamp = function( elems ) {
    elems = this._find( elems );
    if ( !elems ) {
      return;
    }

    this.stamps = this.stamps.concat( elems );
    // ignore
    elems.forEach( this.ignore, this );
  };

  /**
   * removes elements to stamps
   * @param {NodeList, Array, or Element} elems
   */
  proto.unstamp = function( elems ) {
    elems = this._find( elems );
    if ( !elems ){
      return;
    }

    elems.forEach( function( elem ) {
      // filter out removed stamp elements
      utils.removeFrom( this.stamps, elem );
      this.unignore( elem );
    }, this );
  };

  /**
   * finds child elements
   * @param {NodeList, Array, Element, or String} elems
   * @returns {Array} elems
   */
  proto._find = function( elems ) {
    if ( !elems ) {
      return;
    }
    // if string, use argument as selector string
    if ( typeof elems == 'string' ) {
      elems = this.element.querySelectorAll( elems );
    }
    elems = utils.makeArray( elems );
    return elems;
  };

  proto._manageStamps = function() {
    if ( !this.stamps || !this.stamps.length ) {
      return;
    }

    this._getBoundingRect();

    this.stamps.forEach( this._manageStamp, this );
  };

// update boundingLeft / Top
  proto._getBoundingRect = function() {
    // get bounding rect for container element
    var boundingRect = this.element.getBoundingClientRect();
    var size = this.size;
    this._boundingRect = {
      left: boundingRect.left + size.paddingLeft + size.borderLeftWidth,
      top: boundingRect.top + size.paddingTop + size.borderTopWidth,
      right: boundingRect.right - ( size.paddingRight + size.borderRightWidth ),
      bottom: boundingRect.bottom - ( size.paddingBottom + size.borderBottomWidth )
    };
  };

  /**
   * @param {Element} stamp
   **/
  proto._manageStamp = noop;

  /**
   * get x/y position of element relative to container element
   * @param {Element} elem
   * @returns {Object} offset - has left, top, right, bottom
   */
  proto._getElementOffset = function( elem ) {
    var boundingRect = elem.getBoundingClientRect();
    var thisRect = this._boundingRect;
    var size = getSize( elem );
    var offset = {
      left: boundingRect.left - thisRect.left - size.marginLeft,
      top: boundingRect.top - thisRect.top - size.marginTop,
      right: thisRect.right - boundingRect.right - size.marginRight,
      bottom: thisRect.bottom - boundingRect.bottom - size.marginBottom
    };
    return offset;
  };

// -------------------------- resize -------------------------- //

// enable event handlers for listeners
// i.e. resize -> onresize
  proto.handleEvent = utils.handleEvent;

  /**
   * Bind layout to window resizing
   */
  proto.bindResize = function() {
    window.addEventListener( 'resize', this );
    this.isResizeBound = true;
  };

  /**
   * Unbind layout to window resizing
   */
  proto.unbindResize = function() {
    window.removeEventListener( 'resize', this );
    this.isResizeBound = false;
  };

  proto.onresize = function() {
    this.resize();
  };

  utils.debounceMethod( Outlayer, 'onresize', 100 );

  proto.resize = function() {
    // don't trigger if size did not change
    // or if resize was unbound. See #9
    if ( !this.isResizeBound || !this.needsResizeLayout() ) {
      return;
    }

    this.layout();
  };

  /**
   * check if layout is needed post layout
   * @returns Boolean
   */
  proto.needsResizeLayout = function() {
    var size = getSize( this.element );
    // check that this.size and size are there
    // IE8 triggers resize on body size change, so they might not be
    var hasSizes = this.size && size;
    return hasSizes && size.innerWidth !== this.size.innerWidth;
  };

// -------------------------- methods -------------------------- //

  /**
   * add items to Outlayer instance
   * @param {Array or NodeList or Element} elems
   * @returns {Array} items - Outlayer.Items
   **/
  proto.addItems = function( elems ) {
    var items = this._itemize( elems );
    // add items to collection
    if ( items.length ) {
      this.items = this.items.concat( items );
    }
    return items;
  };

  /**
   * Layout newly-appended item elements
   * @param {Array or NodeList or Element} elems
   */
  proto.appended = function( elems ) {
    var items = this.addItems( elems );
    if ( !items.length ) {
      return;
    }
    // layout and reveal just the new items
    this.layoutItems( items, true );
    this.reveal( items );
  };

  /**
   * Layout prepended elements
   * @param {Array or NodeList or Element} elems
   */
  proto.prepended = function( elems ) {
    var items = this._itemize( elems );
    if ( !items.length ) {
      return;
    }
    // add items to beginning of collection
    var previousItems = this.items.slice(0);
    this.items = items.concat( previousItems );
    // start new layout
    this._resetLayout();
    this._manageStamps();
    // layout new stuff without transition
    this.layoutItems( items, true );
    this.reveal( items );
    // layout previous items
    this.layoutItems( previousItems );
  };

  /**
   * reveal a collection of items
   * @param {Array of Outlayer.Items} items
   */
  proto.reveal = function( items ) {
    this._emitCompleteOnItems( 'reveal', items );
    if ( !items || !items.length ) {
      return;
    }
    var stagger = this.updateStagger();
    items.forEach( function( item, i ) {
      item.stagger( i * stagger );
      item.reveal();
    });
  };

  /**
   * hide a collection of items
   * @param {Array of Outlayer.Items} items
   */
  proto.hide = function( items ) {
    this._emitCompleteOnItems( 'hide', items );
    if ( !items || !items.length ) {
      return;
    }
    var stagger = this.updateStagger();
    items.forEach( function( item, i ) {
      item.stagger( i * stagger );
      item.hide();
    });
  };

  /**
   * reveal item elements
   * @param {Array}, {Element}, {NodeList} items
   */
  proto.revealItemElements = function( elems ) {
    var items = this.getItems( elems );
    this.reveal( items );
  };

  /**
   * hide item elements
   * @param {Array}, {Element}, {NodeList} items
   */
  proto.hideItemElements = function( elems ) {
    var items = this.getItems( elems );
    this.hide( items );
  };

  /**
   * get Outlayer.Item, given an Element
   * @param {Element} elem
   * @param {Function} callback
   * @returns {Outlayer.Item} item
   */
  proto.getItem = function( elem ) {
    // loop through items to get the one that matches
    for ( var i=0; i < this.items.length; i++ ) {
      var item = this.items[i];
      if ( item.element == elem ) {
        // return item
        return item;
      }
    }
  };

  /**
   * get collection of Outlayer.Items, given Elements
   * @param {Array} elems
   * @returns {Array} items - Outlayer.Items
   */
  proto.getItems = function( elems ) {
    elems = utils.makeArray( elems );
    var items = [];
    elems.forEach( function( elem ) {
      var item = this.getItem( elem );
      if ( item ) {
        items.push( item );
      }
    }, this );

    return items;
  };

  /**
   * remove element(s) from instance and DOM
   * @param {Array or NodeList or Element} elems
   */
  proto.remove = function( elems ) {
    var removeItems = this.getItems( elems );

    this._emitCompleteOnItems( 'remove', removeItems );

    // bail if no items to remove
    if ( !removeItems || !removeItems.length ) {
      return;
    }

    removeItems.forEach( function( item ) {
      item.remove();
      // remove item from collection
      utils.removeFrom( this.items, item );
    }, this );
  };

// ----- destroy ----- //

// remove and disable Outlayer instance
  proto.destroy = function() {
    // clean up dynamic styles
    var style = this.element.style;
    style.height = '';
    style.position = '';
    style.width = '';
    // destroy items
    this.items.forEach( function( item ) {
      item.destroy();
    });

    this.unbindResize();

    var id = this.element.outlayerGUID;
    delete instances[ id ]; // remove reference to instance by id
    delete this.element.outlayerGUID;
    // remove data for jQuery
    if ( jQuery ) {
      jQuery.removeData( this.element, this.constructor.namespace );
    }

  };

// -------------------------- data -------------------------- //

  /**
   * get Outlayer instance from element
   * @param {Element} elem
   * @returns {Outlayer}
   */
  Outlayer.data = function( elem ) {
    elem = utils.getQueryElement( elem );
    var id = elem && elem.outlayerGUID;
    return id && instances[ id ];
  };


// -------------------------- create Outlayer class -------------------------- //

  /**
   * create a layout class
   * @param {String} namespace
   */
  Outlayer.create = function( namespace, options ) {
    // sub-class Outlayer
    var Layout = subclass( Outlayer );
    // apply new options and compatOptions
    Layout.defaults = utils.extend( {}, Outlayer.defaults );
    utils.extend( Layout.defaults, options );
    Layout.compatOptions = utils.extend( {}, Outlayer.compatOptions  );

    Layout.namespace = namespace;

    Layout.data = Outlayer.data;

    // sub-class Item
    Layout.Item = subclass( Item );

    // -------------------------- declarative -------------------------- //

    utils.htmlInit( Layout, namespace );

    // -------------------------- jQuery bridge -------------------------- //

    // make into jQuery plugin
    if ( jQuery && jQuery.bridget ) {
      jQuery.bridget( namespace, Layout );
    }

    return Layout;
  };

  function subclass( Parent ) {
    function SubClass() {
      Parent.apply( this, arguments );
    }

    SubClass.prototype = Object.create( Parent.prototype );
    SubClass.prototype.constructor = SubClass;

    return SubClass;
  }

// ----- helpers ----- //

// how many milliseconds are in each unit
  var msUnits = {
    ms: 1,
    s: 1000
  };

// munge time-like parameter into millisecond number
// '0.4s' -> 40
  function getMilliseconds( time ) {
    if ( typeof time == 'number' ) {
      return time;
    }
    var matches = time.match( /(^\d*\.?\d*)(\w*)/ );
    var num = matches && matches[1];
    var unit = matches && matches[2];
    if ( !num.length ) {
      return 0;
    }
    num = parseFloat( num );
    var mult = msUnits[ unit ] || 1;
    return num * mult;
  }

// ----- fin ----- //

// back in global
  Outlayer.Item = Item;

  return Outlayer;

}));

/**
 * Isotope Item
 **/

( function( window, factory ) {
  // universal module definition
  /* jshint strict: false */ /*globals define, module, require */
  if ( typeof define == 'function' && define.amd ) {
    // AMD
    define( 'isotope-layout/js/item',[
          'outlayer/outlayer'
        ],
        factory );
  } else if ( typeof module == 'object' && module.exports ) {
    // CommonJS
    module.exports = factory(
        require('outlayer')
    );
  } else {
    // browser global
    window.Isotope = window.Isotope || {};
    window.Isotope.Item = factory(
        window.Outlayer
    );
  }

}( window, function factory( Outlayer ) {
  'use strict';

// -------------------------- Item -------------------------- //

// sub-class Outlayer Item
  function Item() {
    Outlayer.Item.apply( this, arguments );
  }

  var proto = Item.prototype = Object.create( Outlayer.Item.prototype );

  var _create = proto._create;
  proto._create = function() {
    // assign id, used for original-order sorting
    this.id = this.layout.itemGUID++;
    _create.call( this );
    this.sortData = {};
  };

  proto.updateSortData = function() {
    if ( this.isIgnored ) {
      return;
    }
    // default sorters
    this.sortData.id = this.id;
    // for backward compatibility
    this.sortData['original-order'] = this.id;
    this.sortData.random = Math.random();
    // go thru getSortData obj and apply the sorters
    var getSortData = this.layout.options.getSortData;
    var sorters = this.layout._sorters;
    for ( var key in getSortData ) {
      var sorter = sorters[ key ];
      this.sortData[ key ] = sorter( this.element, this );
    }
  };

  var _destroy = proto.destroy;
  proto.destroy = function() {
    // call super
    _destroy.apply( this, arguments );
    // reset display, #741
    this.css({
      display: ''
    });
  };

  return Item;

}));

/**
 * Isotope LayoutMode
 */

( function( window, factory ) {
  // universal module definition
  /* jshint strict: false */ /*globals define, module, require */
  if ( typeof define == 'function' && define.amd ) {
    // AMD
    define( 'isotope-layout/js/layout-mode',[
          'get-size/get-size',
          'outlayer/outlayer'
        ],
        factory );
  } else if ( typeof module == 'object' && module.exports ) {
    // CommonJS
    module.exports = factory(
        require('get-size'),
        require('outlayer')
    );
  } else {
    // browser global
    window.Isotope = window.Isotope || {};
    window.Isotope.LayoutMode = factory(
        window.getSize,
        window.Outlayer
    );
  }

}( window, function factory( getSize, Outlayer ) {
  'use strict';

  // layout mode class
  function LayoutMode( isotope ) {
    this.isotope = isotope;
    // link properties
    if ( isotope ) {
      this.options = isotope.options[ this.namespace ];
      this.element = isotope.element;
      this.items = isotope.filteredItems;
      this.size = isotope.size;
    }
  }

  var proto = LayoutMode.prototype;

  /**
   * some methods should just defer to default Outlayer method
   * and reference the Isotope instance as `this`
   **/
  var facadeMethods = [
    '_resetLayout',
    '_getItemLayoutPosition',
    '_manageStamp',
    '_getContainerSize',
    '_getElementOffset',
    'needsResizeLayout',
    '_getOption'
  ];

  facadeMethods.forEach( function( methodName ) {
    proto[ methodName ] = function() {
      return Outlayer.prototype[ methodName ].apply( this.isotope, arguments );
    };
  });

  // -----  ----- //

  // for horizontal layout modes, check vertical size
  proto.needsVerticalResizeLayout = function() {
    // don't trigger if size did not change
    var size = getSize( this.isotope.element );
    // check that this.size and size are there
    // IE8 triggers resize on body size change, so they might not be
    var hasSizes = this.isotope.size && size;
    return hasSizes && size.innerHeight != this.isotope.size.innerHeight;
  };

  // ----- measurements ----- //

  proto._getMeasurement = function() {
    this.isotope._getMeasurement.apply( this, arguments );
  };

  proto.getColumnWidth = function() {
    this.getSegmentSize( 'column', 'Width' );
  };

  proto.getRowHeight = function() {
    this.getSegmentSize( 'row', 'Height' );
  };

  /**
   * get columnWidth or rowHeight
   * segment: 'column' or 'row'
   * size 'Width' or 'Height'
   **/
  proto.getSegmentSize = function( segment, size ) {
    var segmentName = segment + size;
    var outerSize = 'outer' + size;
    // columnWidth / outerWidth // rowHeight / outerHeight
    this._getMeasurement( segmentName, outerSize );
    // got rowHeight or columnWidth, we can chill
    if ( this[ segmentName ] ) {
      return;
    }
    // fall back to item of first element
    var firstItemSize = this.getFirstItemSize();
    this[ segmentName ] = firstItemSize && firstItemSize[ outerSize ] ||
        // or size of container
        this.isotope.size[ 'inner' + size ];
  };

  proto.getFirstItemSize = function() {
    var firstItem = this.isotope.filteredItems[0];
    return firstItem && firstItem.element && getSize( firstItem.element );
  };

  // ----- methods that should reference isotope ----- //

  proto.layout = function() {
    this.isotope.layout.apply( this.isotope, arguments );
  };

  proto.getSize = function() {
    this.isotope.getSize();
    this.size = this.isotope.size;
  };

  // -------------------------- create -------------------------- //

  LayoutMode.modes = {};

  LayoutMode.create = function( namespace, options ) {

    function Mode() {
      LayoutMode.apply( this, arguments );
    }

    Mode.prototype = Object.create( proto );
    Mode.prototype.constructor = Mode;

    // default options
    if ( options ) {
      Mode.options = options;
    }

    Mode.prototype.namespace = namespace;
    // register in Isotope
    LayoutMode.modes[ namespace ] = Mode;

    return Mode;
  };

  return LayoutMode;

}));

/*!
 * Masonry v4.2.1
 * Cascading grid layout library
 * https://masonry.desandro.com
 * MIT License
 * by David DeSandro
 */

( function( window, factory ) {
  // universal module definition
  /* jshint strict: false */ /*globals define, module, require */
  if ( typeof define == 'function' && define.amd ) {
    // AMD
    define( 'masonry-layout/masonry',[
          'outlayer/outlayer',
          'get-size/get-size'
        ],
        factory );
  } else if ( typeof module == 'object' && module.exports ) {
    // CommonJS
    module.exports = factory(
        require('outlayer'),
        require('get-size')
    );
  } else {
    // browser global
    window.Masonry = factory(
        window.Outlayer,
        window.getSize
    );
  }

}( window, function factory( Outlayer, getSize ) {



// -------------------------- masonryDefinition -------------------------- //

  // create an Outlayer layout class
  var Masonry = Outlayer.create('masonry');
  // isFitWidth -> fitWidth
  Masonry.compatOptions.fitWidth = 'isFitWidth';

  var proto = Masonry.prototype;

  proto._resetLayout = function() {
    this.getSize();
    this._getMeasurement( 'columnWidth', 'outerWidth' );
    this._getMeasurement( 'gutter', 'outerWidth' );
    this.measureColumns();

    // reset column Y
    this.colYs = [];
    for ( var i=0; i < this.cols; i++ ) {
      this.colYs.push( 0 );
    }

    this.maxY = 0;
    this.horizontalColIndex = 0;
  };

  proto.measureColumns = function() {
    this.getContainerWidth();
    // if columnWidth is 0, default to outerWidth of first item
    if ( !this.columnWidth ) {
      var firstItem = this.items[0];
      var firstItemElem = firstItem && firstItem.element;
      // columnWidth fall back to item of first element
      this.columnWidth = firstItemElem && getSize( firstItemElem ).outerWidth ||
          // if first elem has no width, default to size of container
          this.containerWidth;
    }

    var columnWidth = this.columnWidth += this.gutter;

    // calculate columns
    var containerWidth = this.containerWidth + this.gutter;
    var cols = containerWidth / columnWidth;
    // fix rounding errors, typically with gutters
    var excess = columnWidth - containerWidth % columnWidth;
    // if overshoot is less than a pixel, round up, otherwise floor it
    var mathMethod = excess && excess < 1 ? 'round' : 'floor';
    cols = Math[ mathMethod ]( cols );
    this.cols = Math.max( cols, 1 );
  };

  proto.getContainerWidth = function() {
    // container is parent if fit width
    var isFitWidth = this._getOption('fitWidth');
    var container = isFitWidth ? this.element.parentNode : this.element;
    // check that this.size and size are there
    // IE8 triggers resize on body size change, so they might not be
    var size = getSize( container );
    this.containerWidth = size && size.innerWidth;
  };

  proto._getItemLayoutPosition = function( item ) {
    item.getSize();
    // how many columns does this brick span
    var remainder = item.size.outerWidth % this.columnWidth;
    var mathMethod = remainder && remainder < 1 ? 'round' : 'ceil';
    // round if off by 1 pixel, otherwise use ceil
    var colSpan = Math[ mathMethod ]( item.size.outerWidth / this.columnWidth );
    colSpan = Math.min( colSpan, this.cols );
    // use horizontal or top column position
    var colPosMethod = this.options.horizontalOrder ?
        '_getHorizontalColPosition' : '_getTopColPosition';
    var colPosition = this[ colPosMethod ]( colSpan, item );
    // position the brick
    var position = {
      x: this.columnWidth * colPosition.col,
      y: colPosition.y
    };
    // apply setHeight to necessary columns
    var setHeight = colPosition.y + item.size.outerHeight;
    var setMax = colSpan + colPosition.col;
    for ( var i = colPosition.col; i < setMax; i++ ) {
      this.colYs[i] = setHeight;
    }

    return position;
  };

  proto._getTopColPosition = function( colSpan ) {
    var colGroup = this._getTopColGroup( colSpan );
    // get the minimum Y value from the columns
    var minimumY = Math.min.apply( Math, colGroup );

    return {
      col: colGroup.indexOf( minimumY ),
      y: minimumY,
    };
  };

  /**
   * @param {Number} colSpan - number of columns the element spans
   * @returns {Array} colGroup
   */
  proto._getTopColGroup = function( colSpan ) {
    if ( colSpan < 2 ) {
      // if brick spans only one column, use all the column Ys
      return this.colYs;
    }

    var colGroup = [];
    // how many different places could this brick fit horizontally
    var groupCount = this.cols + 1 - colSpan;
    // for each group potential horizontal position
    for ( var i = 0; i < groupCount; i++ ) {
      colGroup[i] = this._getColGroupY( i, colSpan );
    }
    return colGroup;
  };

  proto._getColGroupY = function( col, colSpan ) {
    if ( colSpan < 2 ) {
      return this.colYs[ col ];
    }
    // make an array of colY values for that one group
    var groupColYs = this.colYs.slice( col, col + colSpan );
    // and get the max value of the array
    return Math.max.apply( Math, groupColYs );
  };

  // get column position based on horizontal index. #873
  proto._getHorizontalColPosition = function( colSpan, item ) {
    var col = this.horizontalColIndex % this.cols;
    var isOver = colSpan > 1 && col + colSpan > this.cols;
    // shift to next row if item can't fit on current row
    col = isOver ? 0 : col;
    // don't let zero-size items take up space
    var hasSize = item.size.outerWidth && item.size.outerHeight;
    this.horizontalColIndex = hasSize ? col + colSpan : this.horizontalColIndex;

    return {
      col: col,
      y: this._getColGroupY( col, colSpan ),
    };
  };

  proto._manageStamp = function( stamp ) {
    var stampSize = getSize( stamp );
    var offset = this._getElementOffset( stamp );
    // get the columns that this stamp affects
    var isOriginLeft = this._getOption('originLeft');
    var firstX = isOriginLeft ? offset.left : offset.right;
    var lastX = firstX + stampSize.outerWidth;
    var firstCol = Math.floor( firstX / this.columnWidth );
    firstCol = Math.max( 0, firstCol );
    var lastCol = Math.floor( lastX / this.columnWidth );
    // lastCol should not go over if multiple of columnWidth #425
    lastCol -= lastX % this.columnWidth ? 0 : 1;
    lastCol = Math.min( this.cols - 1, lastCol );
    // set colYs to bottom of the stamp

    var isOriginTop = this._getOption('originTop');
    var stampMaxY = ( isOriginTop ? offset.top : offset.bottom ) +
        stampSize.outerHeight;
    for ( var i = firstCol; i <= lastCol; i++ ) {
      this.colYs[i] = Math.max( stampMaxY, this.colYs[i] );
    }
  };

  proto._getContainerSize = function() {
    this.maxY = Math.max.apply( Math, this.colYs );
    var size = {
      height: this.maxY
    };

    if ( this._getOption('fitWidth') ) {
      size.width = this._getContainerFitWidth();
    }

    return size;
  };

  proto._getContainerFitWidth = function() {
    var unusedCols = 0;
    // count unused columns
    var i = this.cols;
    while ( --i ) {
      if ( this.colYs[i] !== 0 ) {
        break;
      }
      unusedCols++;
    }
    // fit container to columns that have been used
    return ( this.cols - unusedCols ) * this.columnWidth - this.gutter;
  };

  proto.needsResizeLayout = function() {
    var previousWidth = this.containerWidth;
    this.getContainerWidth();
    return previousWidth != this.containerWidth;
  };

  return Masonry;

}));

/*!
 * Masonry layout mode
 * sub-classes Masonry
 * https://masonry.desandro.com
 */

( function( window, factory ) {
  // universal module definition
  /* jshint strict: false */ /*globals define, module, require */
  if ( typeof define == 'function' && define.amd ) {
    // AMD
    define( 'isotope-layout/js/layout-modes/masonry',[
          '../layout-mode',
          'masonry-layout/masonry'
        ],
        factory );
  } else if ( typeof module == 'object' && module.exports ) {
    // CommonJS
    module.exports = factory(
        require('../layout-mode'),
        require('masonry-layout')
    );
  } else {
    // browser global
    factory(
        window.Isotope.LayoutMode,
        window.Masonry
    );
  }

}( window, function factory( LayoutMode, Masonry ) {
  'use strict';

// -------------------------- masonryDefinition -------------------------- //

  // create an Outlayer layout class
  var MasonryMode = LayoutMode.create('masonry');

  var proto = MasonryMode.prototype;

  var keepModeMethods = {
    _getElementOffset: true,
    layout: true,
    _getMeasurement: true
  };

  // inherit Masonry prototype
  for ( var method in Masonry.prototype ) {
    // do not inherit mode methods
    if ( !keepModeMethods[ method ] ) {
      proto[ method ] = Masonry.prototype[ method ];
    }
  }

  var measureColumns = proto.measureColumns;
  proto.measureColumns = function() {
    // set items, used if measuring first item
    this.items = this.isotope.filteredItems;
    measureColumns.call( this );
  };

  // point to mode options for fitWidth
  var _getOption = proto._getOption;
  proto._getOption = function( option ) {
    if ( option == 'fitWidth' ) {
      return this.options.isFitWidth !== undefined ?
          this.options.isFitWidth : this.options.fitWidth;
    }
    return _getOption.apply( this.isotope, arguments );
  };

  return MasonryMode;

}));

/**
 * fitRows layout mode
 */

( function( window, factory ) {
  // universal module definition
  /* jshint strict: false */ /*globals define, module, require */
  if ( typeof define == 'function' && define.amd ) {
    // AMD
    define( 'isotope-layout/js/layout-modes/fit-rows',[
          '../layout-mode'
        ],
        factory );
  } else if ( typeof exports == 'object' ) {
    // CommonJS
    module.exports = factory(
        require('../layout-mode')
    );
  } else {
    // browser global
    factory(
        window.Isotope.LayoutMode
    );
  }

}( window, function factory( LayoutMode ) {
  'use strict';

  var FitRows = LayoutMode.create('fitRows');

  var proto = FitRows.prototype;

  proto._resetLayout = function() {
    this.x = 0;
    this.y = 0;
    this.maxY = 0;
    this._getMeasurement( 'gutter', 'outerWidth' );
  };

  proto._getItemLayoutPosition = function( item ) {
    item.getSize();

    var itemWidth = item.size.outerWidth + this.gutter;
    // if this element cannot fit in the current row
    var containerWidth = this.isotope.size.innerWidth + this.gutter;
    if ( this.x !== 0 && itemWidth + this.x > containerWidth ) {
      this.x = 0;
      this.y = this.maxY;
    }

    var position = {
      x: this.x,
      y: this.y
    };

    this.maxY = Math.max( this.maxY, this.y + item.size.outerHeight );
    this.x += itemWidth;

    return position;
  };

  proto._getContainerSize = function() {
    return { height: this.maxY };
  };

  return FitRows;

}));

/**
 * vertical layout mode
 */

( function( window, factory ) {
  // universal module definition
  /* jshint strict: false */ /*globals define, module, require */
  if ( typeof define == 'function' && define.amd ) {
    // AMD
    define( 'isotope-layout/js/layout-modes/vertical',[
          '../layout-mode'
        ],
        factory );
  } else if ( typeof module == 'object' && module.exports ) {
    // CommonJS
    module.exports = factory(
        require('../layout-mode')
    );
  } else {
    // browser global
    factory(
        window.Isotope.LayoutMode
    );
  }

}( window, function factory( LayoutMode ) {
  'use strict';

  var Vertical = LayoutMode.create( 'vertical', {
    horizontalAlignment: 0
  });

  var proto = Vertical.prototype;

  proto._resetLayout = function() {
    this.y = 0;
  };

  proto._getItemLayoutPosition = function( item ) {
    item.getSize();
    var x = ( this.isotope.size.innerWidth - item.size.outerWidth ) *
        this.options.horizontalAlignment;
    var y = this.y;
    this.y += item.size.outerHeight;
    return { x: x, y: y };
  };

  proto._getContainerSize = function() {
    return { height: this.y };
  };

  return Vertical;

}));

/*!
 * Isotope v3.0.6
 *
 * Licensed GPLv3 for open source use
 * or Isotope Commercial License for commercial use
 *
 * https://isotope.metafizzy.co
 * Copyright 2010-2018 Metafizzy
 */

( function( window, factory ) {
  // universal module definition
  /* jshint strict: false */ /*globals define, module, require */
  if ( typeof define == 'function' && define.amd ) {
    // AMD
    define( [
          'outlayer/outlayer',
          'get-size/get-size',
          'desandro-matches-selector/matches-selector',
          'fizzy-ui-utils/utils',
          'isotope-layout/js/item',
          'isotope-layout/js/layout-mode',
          // include default layout modes
          'isotope-layout/js/layout-modes/masonry',
          'isotope-layout/js/layout-modes/fit-rows',
          'isotope-layout/js/layout-modes/vertical'
        ],
        function( Outlayer, getSize, matchesSelector, utils, Item, LayoutMode ) {
          return factory( window, Outlayer, getSize, matchesSelector, utils, Item, LayoutMode );
        });
  } else if ( typeof module == 'object' && module.exports ) {
    // CommonJS
    module.exports = factory(
        window,
        require('outlayer'),
        require('get-size'),
        require('desandro-matches-selector'),
        require('fizzy-ui-utils'),
        require('isotope-layout/js/item'),
        require('isotope-layout/js/layout-mode'),
        // include default layout modes
        require('isotope-layout/js/layout-modes/masonry'),
        require('isotope-layout/js/layout-modes/fit-rows'),
        require('isotope-layout/js/layout-modes/vertical')
    );
  } else {
    // browser global
    window.Isotope = factory(
        window,
        window.Outlayer,
        window.getSize,
        window.matchesSelector,
        window.fizzyUIUtils,
        window.Isotope.Item,
        window.Isotope.LayoutMode
    );
  }

}( window, function factory( window, Outlayer, getSize, matchesSelector, utils,
                             Item, LayoutMode ) {



// -------------------------- vars -------------------------- //

  var jQuery = window.jQuery;

// -------------------------- helpers -------------------------- //

  var trim = String.prototype.trim ?
      function( str ) {
        return str.trim();
      } :
      function( str ) {
        return str.replace( /^\s+|\s+$/g, '' );
      };

// -------------------------- isotopeDefinition -------------------------- //

  // create an Outlayer layout class
  var Isotope = Outlayer.create( 'isotope', {
    layoutMode: 'masonry',
    isJQueryFiltering: true,
    sortAscending: true
  });

  Isotope.Item = Item;
  Isotope.LayoutMode = LayoutMode;

  var proto = Isotope.prototype;

  proto._create = function() {
    this.itemGUID = 0;
    // functions that sort items
    this._sorters = {};
    this._getSorters();
    // call super
    Outlayer.prototype._create.call( this );

    // create layout modes
    this.modes = {};
    // start filteredItems with all items
    this.filteredItems = this.items;
    // keep of track of sortBys
    this.sortHistory = [ 'original-order' ];
    // create from registered layout modes
    for ( var name in LayoutMode.modes ) {
      this._initLayoutMode( name );
    }
  };

  proto.reloadItems = function() {
    // reset item ID counter
    this.itemGUID = 0;
    // call super
    Outlayer.prototype.reloadItems.call( this );
  };

  proto._itemize = function() {
    var items = Outlayer.prototype._itemize.apply( this, arguments );
    // assign ID for original-order
    for ( var i=0; i < items.length; i++ ) {
      var item = items[i];
      item.id = this.itemGUID++;
    }
    this._updateItemsSortData( items );
    return items;
  };


  // -------------------------- layout -------------------------- //

  proto._initLayoutMode = function( name ) {
    var Mode = LayoutMode.modes[ name ];
    // set mode options
    // HACK extend initial options, back-fill in default options
    var initialOpts = this.options[ name ] || {};
    this.options[ name ] = Mode.options ?
        utils.extend( Mode.options, initialOpts ) : initialOpts;
    // init layout mode instance
    this.modes[ name ] = new Mode( this );
  };


  proto.layout = function() {
    // if first time doing layout, do all magic
    if ( !this._isLayoutInited && this._getOption('initLayout') ) {
      this.arrange();
      return;
    }
    this._layout();
  };

  // private method to be used in layout() & magic()
  proto._layout = function() {
    // don't animate first layout
    var isInstant = this._getIsInstant();
    // layout flow
    this._resetLayout();
    this._manageStamps();
    this.layoutItems( this.filteredItems, isInstant );

    // flag for initalized
    this._isLayoutInited = true;
  };

  // filter + sort + layout
  proto.arrange = function( opts ) {
    // set any options pass
    this.option( opts );
    this._getIsInstant();
    // filter, sort, and layout

    // filter
    var filtered = this._filter( this.items );
    this.filteredItems = filtered.matches;

    this._bindArrangeComplete();

    if ( this._isInstant ) {
      this._noTransition( this._hideReveal, [ filtered ] );
    } else {
      this._hideReveal( filtered );
    }

    this._sort();
    this._layout();
  };
  // alias to _init for main plugin method
  proto._init = proto.arrange;

  proto._hideReveal = function( filtered ) {
    this.reveal( filtered.needReveal );
    this.hide( filtered.needHide );
  };

  // HACK
  // Don't animate/transition first layout
  // Or don't animate/transition other layouts
  proto._getIsInstant = function() {
    var isLayoutInstant = this._getOption('layoutInstant');
    var isInstant = isLayoutInstant !== undefined ? isLayoutInstant :
        !this._isLayoutInited;
    this._isInstant = isInstant;
    return isInstant;
  };

  // listen for layoutComplete, hideComplete and revealComplete
  // to trigger arrangeComplete
  proto._bindArrangeComplete = function() {
    // listen for 3 events to trigger arrangeComplete
    var isLayoutComplete, isHideComplete, isRevealComplete;
    var _this = this;
    function arrangeParallelCallback() {
      if ( isLayoutComplete && isHideComplete && isRevealComplete ) {
        _this.dispatchEvent( 'arrangeComplete', null, [ _this.filteredItems ] );
      }
    }
    this.once( 'layoutComplete', function() {
      isLayoutComplete = true;
      arrangeParallelCallback();
    });
    this.once( 'hideComplete', function() {
      isHideComplete = true;
      arrangeParallelCallback();
    });
    this.once( 'revealComplete', function() {
      isRevealComplete = true;
      arrangeParallelCallback();
    });
  };

  // -------------------------- filter -------------------------- //

  proto._filter = function( items ) {
    var filter = this.options.filter;
    filter = filter || '*';
    var matches = [];
    var hiddenMatched = [];
    var visibleUnmatched = [];

    var test = this._getFilterTest( filter );

    // test each item
    for ( var i=0; i < items.length; i++ ) {
      var item = items[i];
      if ( item.isIgnored ) {
        continue;
      }
      // add item to either matched or unmatched group
      var isMatched = test( item );
      // item.isFilterMatched = isMatched;
      // add to matches if its a match
      if ( isMatched ) {
        matches.push( item );
      }
      // add to additional group if item needs to be hidden or revealed
      if ( isMatched && item.isHidden ) {
        hiddenMatched.push( item );
      } else if ( !isMatched && !item.isHidden ) {
        visibleUnmatched.push( item );
      }
    }

    // return collections of items to be manipulated
    return {
      matches: matches,
      needReveal: hiddenMatched,
      needHide: visibleUnmatched
    };
  };

  // get a jQuery, function, or a matchesSelector test given the filter
  proto._getFilterTest = function( filter ) {
    if ( jQuery && this.options.isJQueryFiltering ) {
      // use jQuery
      return function( item ) {
        return jQuery( item.element ).is( filter );
      };
    }
    if ( typeof filter == 'function' ) {
      // use filter as function
      return function( item ) {
        return filter( item.element );
      };
    }
    // default, use filter as selector string
    return function( item ) {
      return matchesSelector( item.element, filter );
    };
  };

  // -------------------------- sorting -------------------------- //

  /**
   * @params {Array} elems
   * @public
   */
  proto.updateSortData = function( elems ) {
    // get items
    var items;
    if ( elems ) {
      elems = utils.makeArray( elems );
      items = this.getItems( elems );
    } else {
      // update all items if no elems provided
      items = this.items;
    }

    this._getSorters();
    this._updateItemsSortData( items );
  };

  proto._getSorters = function() {
    var getSortData = this.options.getSortData;
    for ( var key in getSortData ) {
      var sorter = getSortData[ key ];
      this._sorters[ key ] = mungeSorter( sorter );
    }
  };

  /**
   * @params {Array} items - of Isotope.Items
   * @private
   */
  proto._updateItemsSortData = function( items ) {
    // do not update if no items
    var len = items && items.length;

    for ( var i=0; len && i < len; i++ ) {
      var item = items[i];
      item.updateSortData();
    }
  };

  // ----- munge sorter ----- //

  // encapsulate this, as we just need mungeSorter
  // other functions in here are just for munging
  var mungeSorter = ( function() {
    // add a magic layer to sorters for convienent shorthands
    // `.foo-bar` will use the text of .foo-bar querySelector
    // `[foo-bar]` will use attribute
    // you can also add parser
    // `.foo-bar parseInt` will parse that as a number
    function mungeSorter( sorter ) {
      // if not a string, return function or whatever it is
      if ( typeof sorter != 'string' ) {
        return sorter;
      }
      // parse the sorter string
      var args = trim( sorter ).split(' ');
      var query = args[0];
      // check if query looks like [an-attribute]
      var attrMatch = query.match( /^\[(.+)\]$/ );
      var attr = attrMatch && attrMatch[1];
      var getValue = getValueGetter( attr, query );
      // use second argument as a parser
      var parser = Isotope.sortDataParsers[ args[1] ];
      // parse the value, if there was a parser
      sorter = parser ? function( elem ) {
            return elem && parser( getValue( elem ) );
          } :
          // otherwise just return value
          function( elem ) {
            return elem && getValue( elem );
          };

      return sorter;
    }

    // get an attribute getter, or get text of the querySelector
    function getValueGetter( attr, query ) {
      // if query looks like [foo-bar], get attribute
      if ( attr ) {
        return function getAttribute( elem ) {
          return elem.getAttribute( attr );
        };
      }

      // otherwise, assume its a querySelector, and get its text
      return function getChildText( elem ) {
        var child = elem.querySelector( query );
        return child && child.textContent;
      };
    }

    return mungeSorter;
  })();

  // parsers used in getSortData shortcut strings
  Isotope.sortDataParsers = {
    'parseInt': function( val ) {
      return parseInt( val, 10 );
    },
    'parseFloat': function( val ) {
      return parseFloat( val );
    }
  };

  // ----- sort method ----- //

  // sort filteredItem order
  proto._sort = function() {
    if ( !this.options.sortBy ) {
      return;
    }
    // keep track of sortBy History
    var sortBys = utils.makeArray( this.options.sortBy );
    if ( !this._getIsSameSortBy( sortBys ) ) {
      // concat all sortBy and sortHistory, add to front, oldest goes in last
      this.sortHistory = sortBys.concat( this.sortHistory );
    }
    // sort magic
    var itemSorter = getItemSorter( this.sortHistory, this.options.sortAscending );
    this.filteredItems.sort( itemSorter );
  };

  // check if sortBys is same as start of sortHistory
  proto._getIsSameSortBy = function( sortBys ) {
    for ( var i=0; i < sortBys.length; i++ ) {
      if ( sortBys[i] != this.sortHistory[i] ) {
        return false;
      }
    }
    return true;
  };

  // returns a function used for sorting
  function getItemSorter( sortBys, sortAsc ) {
    return function sorter( itemA, itemB ) {
      // cycle through all sortKeys
      for ( var i = 0; i < sortBys.length; i++ ) {
        var sortBy = sortBys[i];
        var a = itemA.sortData[ sortBy ];
        var b = itemB.sortData[ sortBy ];
        if ( a > b || a < b ) {
          // if sortAsc is an object, use the value given the sortBy key
          var isAscending = sortAsc[ sortBy ] !== undefined ? sortAsc[ sortBy ] : sortAsc;
          var direction = isAscending ? 1 : -1;
          return ( a > b ? 1 : -1 ) * direction;
        }
      }
      return 0;
    };
  }

  // -------------------------- methods -------------------------- //

  // get layout mode
  proto._mode = function() {
    var layoutMode = this.options.layoutMode;
    var mode = this.modes[ layoutMode ];
    if ( !mode ) {
      // TODO console.error
      throw new Error( 'No layout mode: ' + layoutMode );
    }
    // HACK sync mode's options
    // any options set after init for layout mode need to be synced
    mode.options = this.options[ layoutMode ];
    return mode;
  };

  proto._resetLayout = function() {
    // trigger original reset layout
    Outlayer.prototype._resetLayout.call( this );
    this._mode()._resetLayout();
  };

  proto._getItemLayoutPosition = function( item  ) {
    return this._mode()._getItemLayoutPosition( item );
  };

  proto._manageStamp = function( stamp ) {
    this._mode()._manageStamp( stamp );
  };

  proto._getContainerSize = function() {
    return this._mode()._getContainerSize();
  };

  proto.needsResizeLayout = function() {
    return this._mode().needsResizeLayout();
  };

  // -------------------------- adding & removing -------------------------- //

  // HEADS UP overwrites default Outlayer appended
  proto.appended = function( elems ) {
    var items = this.addItems( elems );
    if ( !items.length ) {
      return;
    }
    // filter, layout, reveal new items
    var filteredItems = this._filterRevealAdded( items );
    // add to filteredItems
    this.filteredItems = this.filteredItems.concat( filteredItems );
  };

  // HEADS UP overwrites default Outlayer prepended
  proto.prepended = function( elems ) {
    var items = this._itemize( elems );
    if ( !items.length ) {
      return;
    }
    // start new layout
    this._resetLayout();
    this._manageStamps();
    // filter, layout, reveal new items
    var filteredItems = this._filterRevealAdded( items );
    // layout previous items
    this.layoutItems( this.filteredItems );
    // add to items and filteredItems
    this.filteredItems = filteredItems.concat( this.filteredItems );
    this.items = items.concat( this.items );
  };

  proto._filterRevealAdded = function( items ) {
    var filtered = this._filter( items );
    this.hide( filtered.needHide );
    // reveal all new items
    this.reveal( filtered.matches );
    // layout new items, no transition
    this.layoutItems( filtered.matches, true );
    return filtered.matches;
  };

  /**
   * Filter, sort, and layout newly-appended item elements
   * @param {Array or NodeList or Element} elems
   */
  proto.insert = function( elems ) {
    var items = this.addItems( elems );
    if ( !items.length ) {
      return;
    }
    // append item elements
    var i, item;
    var len = items.length;
    for ( i=0; i < len; i++ ) {
      item = items[i];
      this.element.appendChild( item.element );
    }
    // filter new stuff
    var filteredInsertItems = this._filter( items ).matches;
    // set flag
    for ( i=0; i < len; i++ ) {
      items[i].isLayoutInstant = true;
    }
    this.arrange();
    // reset flag
    for ( i=0; i < len; i++ ) {
      delete items[i].isLayoutInstant;
    }
    this.reveal( filteredInsertItems );
  };

  var _remove = proto.remove;
  proto.remove = function( elems ) {
    elems = utils.makeArray( elems );
    var removeItems = this.getItems( elems );
    // do regular thing
    _remove.call( this, elems );
    // bail if no items to remove
    var len = removeItems && removeItems.length;
    // remove elems from filteredItems
    for ( var i=0; len && i < len; i++ ) {
      var item = removeItems[i];
      // remove item from collection
      utils.removeFrom( this.filteredItems, item );
    }
  };

  proto.shuffle = function() {
    // update random sortData
    for ( var i=0; i < this.items.length; i++ ) {
      var item = this.items[i];
      item.sortData.random = Math.random();
    }
    this.options.sortBy = 'random';
    this._sort();
    this._layout();
  };

  /**
   * trigger fn without transition
   * kind of hacky to have this in the first place
   * @param {Function} fn
   * @param {Array} args
   * @returns ret
   * @private
   */
  proto._noTransition = function( fn, args ) {
    // save transitionDuration before disabling
    var transitionDuration = this.options.transitionDuration;
    // disable transition
    this.options.transitionDuration = 0;
    // do it
    var returnValue = fn.apply( this, args );
    // re-enable transition for reveal
    this.options.transitionDuration = transitionDuration;
    return returnValue;
  };

  // ----- helper methods ----- //

  /**
   * getter method for getting filtered item elements
   * @returns {Array} elems - collection of item elements
   */
  proto.getFilteredItemElements = function() {
    return this.filteredItems.map( function( item ) {
      return item.element;
    });
  };

  // -----  ----- //

  return Isotope;

}));

/**
 * IMPORTANT WOODMART NOTICE: this file is a modified version of the original isotope.pkgd.js file.
 * If you update this file, ensure to re-apply fixes (see: https://github.com/metafizzy/flickity/pull/900).
 */

/*!
 * Packery v3.0.0
 * Gapless, draggable grid layouts
 * MIT License
 * https://packery.metafizzy.co
 * Copyright 2013-2025 Metafizzy
 */

/**
 * Bridget makes jQuery widgets
 * v2.0.1
 * MIT license
 */

/* jshint browser: true, strict: true, undef: true, unused: true */

( function( window, factory ) {
	// universal module definition
	/*jshint strict: false */ /* globals define, module, require */
	if ( typeof define == 'function' && define.amd ) {
		// AMD
		define( 'jquery-bridget/jquery-bridget',[ 'jquery' ], function( jQuery ) {
			return factory( window, jQuery );
		});
	} else if ( typeof module == 'object' && module.exports ) {
		// CommonJS
		module.exports = factory(
			window,
			require('jquery')
		);
	} else {
		// browser global
		window.jQueryBridget = factory(
			window,
			window.jQuery
		);
	}

}( window, function factory( window, jQuery ) {
	'use strict';

// ----- utils ----- //

	var arraySlice = Array.prototype.slice;

// helper function for logging errors
// $.error breaks jQuery chaining
	var console = window.console;
	var logError = typeof console == 'undefined' ? function() {} :
		function( message ) {
			console.error( message );
		};

// ----- jQueryBridget ----- //

	function jQueryBridget( namespace, PluginClass, $ ) {
		$ = $ || jQuery || window.jQuery;
		if ( !$ ) {
			return;
		}

		// add option method -> $().plugin('option', {...})
		if ( !PluginClass.prototype.option ) {
			// option setter
			PluginClass.prototype.option = function( opts ) {
				// bail out if not an object
				if ( !$.isPlainObject( opts ) ){
					return;
				}
				this.options = $.extend( true, this.options, opts );
			};
		}

		// make jQuery plugin
		$.fn[ namespace ] = function( arg0 /*, arg1 */ ) {
			if ( typeof arg0 == 'string' ) {
				// method call $().plugin( 'methodName', { options } )
				// shift arguments by 1
				var args = arraySlice.call( arguments, 1 );
				return methodCall( this, arg0, args );
			}
			// just $().plugin({ options })
			plainCall( this, arg0 );
			return this;
		};

		// $().plugin('methodName')
		function methodCall( $elems, methodName, args ) {
			var returnValue;
			var pluginMethodStr = '$().' + namespace + '("' + methodName + '")';

			$elems.each( function( i, elem ) {
				// get instance
				var instance = $.data( elem, namespace );
				if ( !instance ) {
					logError( namespace + ' not initialized. Cannot call methods, i.e. ' +
						pluginMethodStr );
					return;
				}

				var method = instance[ methodName ];
				if ( !method || methodName.charAt(0) == '_' ) {
					logError( pluginMethodStr + ' is not a valid method' );
					return;
				}

				// apply method, get return value
				var value = method.apply( instance, args );
				// set return value if value is returned, use only first value
				returnValue = returnValue === undefined ? value : returnValue;
			});

			return returnValue !== undefined ? returnValue : $elems;
		}

		function plainCall( $elems, options ) {
			$elems.each( function( i, elem ) {
				var instance = $.data( elem, namespace );
				if ( instance ) {
					// set options & init
					instance.option( options );
					instance._init();
				} else {
					// initialize new instance
					instance = new PluginClass( elem, options );
					$.data( elem, namespace, instance );
				}
			});
		}

		updateJQuery( $ );

	}

// ----- updateJQuery ----- //

// set $.bridget for v1 backwards compatibility
	function updateJQuery( $ ) {
		if ( !$ || ( $ && $.bridget ) ) {
			return;
		}
		$.bridget = jQueryBridget;
	}

	updateJQuery( jQuery || window.jQuery );

// -----  ----- //

	return jQueryBridget;

}));

/*!
 * getSize v2.0.3
 * measure size of elements
 * MIT license
 */

/* jshint browser: true, strict: true, undef: true, unused: true */
/* globals console: false */

( function( window, factory ) {
	/* jshint strict: false */ /* globals define, module */
	if ( typeof define == 'function' && define.amd ) {
		// AMD
		define( 'get-size/get-size',factory );
	} else if ( typeof module == 'object' && module.exports ) {
		// CommonJS
		module.exports = factory();
	} else {
		// browser global
		window.getSize = factory();
	}

})( window, function factory() {
	'use strict';

// -------------------------- helpers -------------------------- //

// get a number from a string, not a percentage
	function getStyleSize( value ) {
		var num = parseFloat( value );
		// not a percent like '100%', and a number
		var isValid = value.indexOf('%') == -1 && !isNaN( num );
		return isValid && num;
	}

	function noop() {}

	var logError = typeof console == 'undefined' ? noop :
		function( message ) {
			console.error( message );
		};

// -------------------------- measurements -------------------------- //

	var measurements = [
		'paddingLeft',
		'paddingRight',
		'paddingTop',
		'paddingBottom',
		'marginLeft',
		'marginRight',
		'marginTop',
		'marginBottom',
		'borderLeftWidth',
		'borderRightWidth',
		'borderTopWidth',
		'borderBottomWidth'
	];

	var measurementsLength = measurements.length;

	function getZeroSize() {
		var size = {
			width: 0,
			height: 0,
			innerWidth: 0,
			innerHeight: 0,
			outerWidth: 0,
			outerHeight: 0
		};
		for ( var i=0; i < measurementsLength; i++ ) {
			var measurement = measurements[i];
			size[ measurement ] = 0;
		}
		return size;
	}

// -------------------------- getStyle -------------------------- //

	/**
	 * getStyle, get style of element, check for Firefox bug
	 * https://bugzilla.mozilla.org/show_bug.cgi?id=548397
	 */
	function getStyle( elem ) {
		var style = getComputedStyle( elem );
		if ( !style ) {
			logError( 'Style returned ' + style +
				'. Are you running this code in a hidden iframe on Firefox? ' +
				'See https://bit.ly/getsizebug1' );
		}
		return style;
	}

// -------------------------- setup -------------------------- //

	var isSetup = false;

	var isBoxSizeOuter;

	/**
	 * setup
	 * check isBoxSizerOuter
	 * do on first getSize() rather than on page load for Firefox bug
	 */
	function setup() {
		// setup once
		if ( isSetup ) {
			return;
		}
		isSetup = true;

		// -------------------------- box sizing -------------------------- //

		/**
		 * Chrome & Safari measure the outer-width on style.width on border-box elems
		 * IE11 & Firefox<29 measures the inner-width
		 */
		var div = document.createElement('div');
		div.style.width = '200px';
		div.style.padding = '1px 2px 3px 4px';
		div.style.borderStyle = 'solid';
		div.style.borderWidth = '1px 2px 3px 4px';
		div.style.boxSizing = 'border-box';

		var body = document.body || document.documentElement;
		body.appendChild( div );
		var style = getStyle( div );
		// round value for browser zoom. desandro/masonry#928
		isBoxSizeOuter = Math.round( getStyleSize( style.width ) ) == 200;
		getSize.isBoxSizeOuter = isBoxSizeOuter;

		body.removeChild( div );
	}

// -------------------------- getSize -------------------------- //

	function getSize( elem ) {
		setup();

		// use querySeletor if elem is string
		if ( typeof elem == 'string' ) {
			elem = document.querySelector( elem );
		}

		// do not proceed on non-objects
		if ( !elem || typeof elem != 'object' || !elem.nodeType ) {
			return;
		}

		var style = getStyle( elem );

		// if hidden, everything is 0
		if ( style.display == 'none' ) {
			return getZeroSize();
		}

		var size = {};
		size.width = elem.offsetWidth;
		size.height = elem.offsetHeight;

		var isBorderBox = size.isBorderBox = style.boxSizing == 'border-box';

		// get all measurements
		for ( var i=0; i < measurementsLength; i++ ) {
			var measurement = measurements[i];
			var value = style[ measurement ];
			var num = parseFloat( value );
			// any 'auto', 'medium' value will be 0
			size[ measurement ] = !isNaN( num ) ? num : 0;
		}

		var paddingWidth = size.paddingLeft + size.paddingRight;
		var paddingHeight = size.paddingTop + size.paddingBottom;
		var marginWidth = size.marginLeft + size.marginRight;
		var marginHeight = size.marginTop + size.marginBottom;
		var borderWidth = size.borderLeftWidth + size.borderRightWidth;
		var borderHeight = size.borderTopWidth + size.borderBottomWidth;

		var isBorderBoxSizeOuter = isBorderBox && isBoxSizeOuter;

		// overwrite width and height if we can get it from style
		var styleWidth = getStyleSize( style.width );
		if ( styleWidth !== false ) {
			size.width = styleWidth +
				// add padding and border unless it's already including it
				( isBorderBoxSizeOuter ? 0 : paddingWidth + borderWidth );
		}

		var styleHeight = getStyleSize( style.height );
		if ( styleHeight !== false ) {
			size.height = styleHeight +
				// add padding and border unless it's already including it
				( isBorderBoxSizeOuter ? 0 : paddingHeight + borderHeight );
		}

		size.innerWidth = size.width - ( paddingWidth + borderWidth );
		size.innerHeight = size.height - ( paddingHeight + borderHeight );

		size.outerWidth = size.width + marginWidth;
		size.outerHeight = size.height + marginHeight;

		return size;
	}

	return getSize;

});

/**
 * EvEmitter v1.1.0
 * Lil' event emitter
 * MIT License
 */

/* jshint unused: true, undef: true, strict: true */

( function( global, factory ) {
	// universal module definition
	/* jshint strict: false */ /* globals define, module, window */
	if ( typeof define == 'function' && define.amd ) {
		// AMD - RequireJS
		define( 'ev-emitter/ev-emitter',factory );
	} else if ( typeof module == 'object' && module.exports ) {
		// CommonJS - Browserify, Webpack
		module.exports = factory();
	} else {
		// Browser globals
		global.EvEmitter = factory();
	}

}( typeof window != 'undefined' ? window : this, function() {



	function EvEmitter() {}

	var proto = EvEmitter.prototype;

	proto.on = function( eventName, listener ) {
		if ( !eventName || !listener ) {
			return;
		}
		// set events hash
		var events = this._events = this._events || {};
		// set listeners array
		var listeners = events[ eventName ] = events[ eventName ] || [];
		// only add once
		if ( listeners.indexOf( listener ) == -1 ) {
			listeners.push( listener );
		}

		return this;
	};

	proto.once = function( eventName, listener ) {
		if ( !eventName || !listener ) {
			return;
		}
		// add event
		this.on( eventName, listener );
		// set once flag
		// set onceEvents hash
		var onceEvents = this._onceEvents = this._onceEvents || {};
		// set onceListeners object
		var onceListeners = onceEvents[ eventName ] = onceEvents[ eventName ] || {};
		// set flag
		onceListeners[ listener ] = true;

		return this;
	};

	proto.off = function( eventName, listener ) {
		var listeners = this._events && this._events[ eventName ];
		if ( !listeners || !listeners.length ) {
			return;
		}
		var index = listeners.indexOf( listener );
		if ( index != -1 ) {
			listeners.splice( index, 1 );
		}

		return this;
	};

	proto.emitEvent = function( eventName, args ) {
		var listeners = this._events && this._events[ eventName ];
		if ( !listeners || !listeners.length ) {
			return;
		}
		// copy over to avoid interference if .off() in listener
		listeners = listeners.slice(0);
		args = args || [];
		// once stuff
		var onceListeners = this._onceEvents && this._onceEvents[ eventName ];

		for ( var i=0; i < listeners.length; i++ ) {
			var listener = listeners[i]
			var isOnce = onceListeners && onceListeners[ listener ];
			if ( isOnce ) {
				// remove listener
				// remove before trigger to prevent recursion
				this.off( eventName, listener );
				// unset once flag
				delete onceListeners[ listener ];
			}
			// trigger listener
			listener.apply( this, args );
		}

		return this;
	};

	proto.allOff = function() {
		delete this._events;
		delete this._onceEvents;
	};

	return EvEmitter;

}));

/**
 * matchesSelector v2.0.2
 * matchesSelector( element, '.selector' )
 * MIT license
 */

/*jshint browser: true, strict: true, undef: true, unused: true */

( function( window, factory ) {
	/*global define: false, module: false */
	'use strict';
	// universal module definition
	if ( typeof define == 'function' && define.amd ) {
		// AMD
		define( 'desandro-matches-selector/matches-selector',factory );
	} else if ( typeof module == 'object' && module.exports ) {
		// CommonJS
		module.exports = factory();
	} else {
		// browser global
		window.matchesSelector = factory();
	}

}( window, function factory() {
	'use strict';

	var matchesMethod = ( function() {
		var ElemProto = window.Element.prototype;
		// check for the standard method name first
		if ( ElemProto.matches ) {
			return 'matches';
		}
		// check un-prefixed
		if ( ElemProto.matchesSelector ) {
			return 'matchesSelector';
		}
		// check vendor prefixes
		var prefixes = [ 'webkit', 'moz', 'ms', 'o' ];

		for ( var i=0; i < prefixes.length; i++ ) {
			var prefix = prefixes[i];
			var method = prefix + 'MatchesSelector';
			if ( ElemProto[ method ] ) {
				return method;
			}
		}
	})();

	return function matchesSelector( elem, selector ) {
		return elem[ matchesMethod ]( selector );
	};

}));

/**
 * Fizzy UI utils v2.0.7
 * MIT license
 */

/*jshint browser: true, undef: true, unused: true, strict: true */

( function( window, factory ) {
	// universal module definition
	/*jshint strict: false */ /*globals define, module, require */

	if ( typeof define == 'function' && define.amd ) {
		// AMD
		define( 'fizzy-ui-utils/utils',[
			'desandro-matches-selector/matches-selector'
		], function( matchesSelector ) {
			return factory( window, matchesSelector );
		});
	} else if ( typeof module == 'object' && module.exports ) {
		// CommonJS
		module.exports = factory(
			window,
			require('desandro-matches-selector')
		);
	} else {
		// browser global
		window.fizzyUIUtils = factory(
			window,
			window.matchesSelector
		);
	}

}( window, function factory( window, matchesSelector ) {



	var utils = {};

// ----- extend ----- //

// extends objects
	utils.extend = function( a, b ) {
		for ( var prop in b ) {
			a[ prop ] = b[ prop ];
		}
		return a;
	};

// ----- modulo ----- //

	utils.modulo = function( num, div ) {
		return ( ( num % div ) + div ) % div;
	};

// ----- makeArray ----- //

	var arraySlice = Array.prototype.slice;

// turn element or nodeList into an array
	utils.makeArray = function( obj ) {
		if ( Array.isArray( obj ) ) {
			// use object if already an array
			return obj;
		}
		// return empty array if undefined or null. #6
		if ( obj === null || obj === undefined ) {
			return [];
		}

		var isArrayLike = typeof obj == 'object' && typeof obj.length == 'number';
		if ( isArrayLike ) {
			// convert nodeList to array
			return arraySlice.call( obj );
		}

		// array of single index
		return [ obj ];
	};

// ----- removeFrom ----- //

	utils.removeFrom = function( ary, obj ) {
		var index = ary.indexOf( obj );
		if ( index != -1 ) {
			ary.splice( index, 1 );
		}
	};

// ----- getParent ----- //

	utils.getParent = function( elem, selector ) {
		while ( elem.parentNode && elem != document.body ) {
			elem = elem.parentNode;
			if ( matchesSelector( elem, selector ) ) {
				return elem;
			}
		}
	};

// ----- getQueryElement ----- //

// use element as selector string
	utils.getQueryElement = function( elem ) {
		if ( typeof elem == 'string' ) {
			return document.querySelector( elem );
		}
		return elem;
	};

// ----- handleEvent ----- //

// enable .ontype to trigger from .addEventListener( elem, 'type' )
	utils.handleEvent = function( event ) {
		var method = 'on' + event.type;
		if ( this[ method ] ) {
			this[ method ]( event );
		}
	};

// ----- filterFindElements ----- //

	utils.filterFindElements = function( elems, selector ) {
		// make array of elems
		elems = utils.makeArray( elems );
		var ffElems = [];
		var isElement = function (elem) {
			return (
			  typeof HTMLElement === "object" ? elem instanceof HTMLElement : elem && typeof elem === "object" && elem !== null && elem.nodeType === 1 && typeof elem.nodeName === "string"
			);
		 };

		elems.forEach( function( elem ) {
			// check that elem is an actual element
			if ( !( isElement(elem) ) ) {
				return;
			}
			// add elem if no selector
			if ( !selector ) {
				ffElems.push( elem );
				return;
			}
			// filter & find items if we have a selector
			// filter
			if ( matchesSelector( elem, selector ) ) {
				ffElems.push( elem );
			}
			// find children
			var childElems = elem.querySelectorAll( selector );
			// concat childElems to filterFound array
			for ( var i=0; i < childElems.length; i++ ) {
				ffElems.push( childElems[i] );
			}
		});

		return ffElems;
	};

// ----- debounceMethod ----- //

	utils.debounceMethod = function( _class, methodName, threshold ) {
		threshold = threshold || 100;
		// original method
		var method = _class.prototype[ methodName ];
		var timeoutName = methodName + 'Timeout';

		_class.prototype[ methodName ] = function() {
			var timeout = this[ timeoutName ];
			clearTimeout( timeout );

			var args = arguments;
			var _this = this;
			this[ timeoutName ] = setTimeout( function() {
				method.apply( _this, args );
				delete _this[ timeoutName ];
			}, threshold );
		};
	};

// ----- docReady ----- //

	utils.docReady = function( callback ) {
		var readyState = document.readyState;
		if ( readyState == 'complete' || readyState == 'interactive' ) {
			// do async to allow for other scripts to run. metafizzy/flickity#441
			setTimeout( callback );
		} else {
			document.addEventListener( 'DOMContentLoaded', callback );
		}
	};

// ----- htmlInit ----- //

// http://jamesroberts.name/blog/2010/02/22/string-functions-for-javascript-trim-to-camel-case-to-dashed-and-to-underscore/
	utils.toDashed = function( str ) {
		return str.replace( /(.)([A-Z])/g, function( match, $1, $2 ) {
			return $1 + '-' + $2;
		}).toLowerCase();
	};

	var console = window.console;
	/**
	 * allow user to initialize classes via [data-namespace] or .js-namespace class
	 * htmlInit( Widget, 'widgetName' )
	 * options are parsed from data-namespace-options
	 */
	utils.htmlInit = function( WidgetClass, namespace ) {
		utils.docReady( function() {
			var dashedNamespace = utils.toDashed( namespace );
			var dataAttr = 'data-' + dashedNamespace;
			var dataAttrElems = document.querySelectorAll( '[' + dataAttr + ']' );
			var jsDashElems = document.querySelectorAll( '.js-' + dashedNamespace );
			var elems = utils.makeArray( dataAttrElems )
				.concat( utils.makeArray( jsDashElems ) );
			var dataOptionsAttr = dataAttr + '-options';
			var jQuery = window.jQuery;

			elems.forEach( function( elem ) {
				var attr = elem.getAttribute( dataAttr ) ||
					elem.getAttribute( dataOptionsAttr );
				var options;
				try {
					options = attr && JSON.parse( attr );
				} catch ( error ) {
					// log error, do not initialize
					if ( console ) {
						console.error( 'Error parsing ' + dataAttr + ' on ' + elem.className +
							': ' + error );
					}
					return;
				}
				// initialize
				var instance = new WidgetClass( elem, options );
				// make available via $().data('namespace')
				if ( jQuery ) {
					jQuery.data( elem, namespace, instance );
				}
			});

		});
	};

// -----  ----- //

	return utils;

}));

/**
 * Outlayer Item
 */

( function( window, factory ) {
	// universal module definition
	/* jshint strict: false */ /* globals define, module, require */
	if ( typeof define == 'function' && define.amd ) {
		// AMD - RequireJS
		define( 'outlayer/item',[
				'ev-emitter/ev-emitter',
				'get-size/get-size'
			],
			factory
		);
	} else if ( typeof module == 'object' && module.exports ) {
		// CommonJS - Browserify, Webpack
		module.exports = factory(
			require('ev-emitter'),
			require('get-size')
		);
	} else {
		// browser global
		window.Outlayer = {};
		window.Outlayer.Item = factory(
			window.EvEmitter,
			window.getSize
		);
	}

}( window, function factory( EvEmitter, getSize ) {
	'use strict';

// ----- helpers ----- //

	function isEmptyObj( obj ) {
		for ( var prop in obj ) {
			return false;
		}
		prop = null;
		return true;
	}

// -------------------------- CSS3 support -------------------------- //


	var docElemStyle = document.documentElement.style;

	var transitionProperty = typeof docElemStyle.transition == 'string' ?
		'transition' : 'WebkitTransition';
	var transformProperty = typeof docElemStyle.transform == 'string' ?
		'transform' : 'WebkitTransform';

	var transitionEndEvent = {
		WebkitTransition: 'webkitTransitionEnd',
		transition: 'transitionend'
	}[ transitionProperty ];

// cache all vendor properties that could have vendor prefix
	var vendorProperties = {
		transform: transformProperty,
		transition: transitionProperty,
		transitionDuration: transitionProperty + 'Duration',
		transitionProperty: transitionProperty + 'Property',
		transitionDelay: transitionProperty + 'Delay'
	};

// -------------------------- Item -------------------------- //

	function Item( element, layout ) {
		if ( !element ) {
			return;
		}

		this.element = element;
		// parent layout class, i.e. Masonry, Isotope, or Packery
		this.layout = layout;
		this.position = {
			x: 0,
			y: 0
		};

		this._create();
	}

// inherit EvEmitter
	var proto = Item.prototype = Object.create( EvEmitter.prototype );
	proto.constructor = Item;

	proto._create = function() {
		// transition objects
		this._transn = {
			ingProperties: {},
			clean: {},
			onEnd: {}
		};

		this.css({
			position: 'absolute'
		});
	};

// trigger specified handler for event type
	proto.handleEvent = function( event ) {
		var method = 'on' + event.type;
		if ( this[ method ] ) {
			this[ method ]( event );
		}
	};

	proto.getSize = function() {
		this.size = getSize( this.element );
	};

	/**
	 * apply CSS styles to element
	 * @param {Object} style
	 */
	proto.css = function( style ) {
		var elemStyle = this.element.style;

		for ( var prop in style ) {
			// use vendor property if available
			var supportedProp = vendorProperties[ prop ] || prop;
			elemStyle[ supportedProp ] = style[ prop ];
		}
	};

	// measure position, and sets it
	proto.getPosition = function() {
		var style = getComputedStyle( this.element );
		var isOriginLeft = this.layout._getOption('originLeft');
		var isOriginTop = this.layout._getOption('originTop');
		var xValue = style[ isOriginLeft ? 'left' : 'right' ];
		var yValue = style[ isOriginTop ? 'top' : 'bottom' ];
		var x = parseFloat( xValue );
		var y = parseFloat( yValue );
		// convert percent to pixels
		var layoutSize = this.layout.size;
		if ( xValue.indexOf('%') != -1 ) {
			x = ( x / 100 ) * layoutSize.width;
		}
		if ( yValue.indexOf('%') != -1 ) {
			y = ( y / 100 ) * layoutSize.height;
		}
		// clean up 'auto' or other non-integer values
		x = isNaN( x ) ? 0 : x;
		y = isNaN( y ) ? 0 : y;
		// remove padding from measurement
		x -= isOriginLeft ? layoutSize.paddingLeft : layoutSize.paddingRight;
		y -= isOriginTop ? layoutSize.paddingTop : layoutSize.paddingBottom;

		this.position.x = x;
		this.position.y = y;
	};

// set settled position, apply padding
	proto.layoutPosition = function() {
		var layoutSize = this.layout.size;
		var style = {};
		var isOriginLeft = this.layout._getOption('originLeft');
		var isOriginTop = this.layout._getOption('originTop');

		// x
		var xPadding = isOriginLeft ? 'paddingLeft' : 'paddingRight';
		var xProperty = isOriginLeft ? 'left' : 'right';
		var xResetProperty = isOriginLeft ? 'right' : 'left';

		var x = this.position.x + layoutSize[ xPadding ];
		// set in percentage or pixels
		style[ xProperty ] = this.getXValue( x );
		// reset other property
		style[ xResetProperty ] = '';

		// y
		var yPadding = isOriginTop ? 'paddingTop' : 'paddingBottom';
		var yProperty = isOriginTop ? 'top' : 'bottom';
		var yResetProperty = isOriginTop ? 'bottom' : 'top';

		var y = this.position.y + layoutSize[ yPadding ];
		// set in percentage or pixels
		style[ yProperty ] = this.getYValue( y );
		// reset other property
		style[ yResetProperty ] = '';

		this.css( style );
		this.emitEvent( 'layout', [ this ] );
	};

	proto.getXValue = function( x ) {
		var isHorizontal = this.layout._getOption('horizontal');
		return this.layout.options.percentPosition && !isHorizontal ?
			( ( x / this.layout.size.width ) * 100 ) + '%' : x + 'px';
	};

	proto.getYValue = function( y ) {
		var isHorizontal = this.layout._getOption('horizontal');
		return this.layout.options.percentPosition && isHorizontal ?
			( ( y / this.layout.size.height ) * 100 ) + '%' : y + 'px';
	};

	proto._transitionTo = function( x, y ) {
		this.getPosition();
		// get current x & y from top/left
		var curX = this.position.x;
		var curY = this.position.y;

		var didNotMove = x == this.position.x && y == this.position.y;

		// save end position
		this.setPosition( x, y );

		// if did not move and not transitioning, just go to layout
		if ( didNotMove && !this.isTransitioning ) {
			this.layoutPosition();
			return;
		}

		var transX = x - curX;
		var transY = y - curY;
		var transitionStyle = {};
		transitionStyle.transform = this.getTranslate( transX, transY );

		this.transition({
			to: transitionStyle,
			onTransitionEnd: {
				transform: this.layoutPosition
			},
			isCleaning: true
		});
	};

	proto.getTranslate = function( x, y ) {
		// flip cooridinates if origin on right or bottom
		var isOriginLeft = this.layout._getOption('originLeft');
		var isOriginTop = this.layout._getOption('originTop');
		x = isOriginLeft ? x : -x;
		y = isOriginTop ? y : -y;
		return 'translate3d(' + x + 'px, ' + y + 'px, 0)';
	};

// non transition + transform support
	proto.goTo = function( x, y ) {
		this.setPosition( x, y );
		this.layoutPosition();
	};

	proto.moveTo = proto._transitionTo;

	proto.setPosition = function( x, y ) {
		this.position.x = parseFloat( x );
		this.position.y = parseFloat( y );
	};

// ----- transition ----- //

	/**
	 * @param {Object} style - CSS
	 * @param {Function} onTransitionEnd
	 */

// non transition, just trigger callback
	proto._nonTransition = function( args ) {
		this.css( args.to );
		if ( args.isCleaning ) {
			this._removeStyles( args.to );
		}
		for ( var prop in args.onTransitionEnd ) {
			args.onTransitionEnd[ prop ].call( this );
		}
	};

	/**
	 * proper transition
	 * @param {Object} args - arguments
	 *   @param {Object} to - style to transition to
	 *   @param {Object} from - style to start transition from
	 *   @param {Boolean} isCleaning - removes transition styles after transition
	 *   @param {Function} onTransitionEnd - callback
	 */
	proto.transition = function( args ) {
		// redirect to nonTransition if no transition duration
		if ( !parseFloat( this.layout.options.transitionDuration ) ) {
			this._nonTransition( args );
			return;
		}

		var _transition = this._transn;
		// keep track of onTransitionEnd callback by css property
		for ( var prop in args.onTransitionEnd ) {
			_transition.onEnd[ prop ] = args.onTransitionEnd[ prop ];
		}
		// keep track of properties that are transitioning
		for ( prop in args.to ) {
			_transition.ingProperties[ prop ] = true;
			// keep track of properties to clean up when transition is done
			if ( args.isCleaning ) {
				_transition.clean[ prop ] = true;
			}
		}

		// set from styles
		if ( args.from ) {
			this.css( args.from );
			// force redraw. http://blog.alexmaccaw.com/css-transitions
			var h = this.element.offsetHeight;
			// hack for JSHint to hush about unused var
			h = null;
		}
		// enable transition
		this.enableTransition( args.to );
		// set styles that are transitioning
		this.css( args.to );

		this.isTransitioning = true;

	};

// dash before all cap letters, including first for
// WebkitTransform => -webkit-transform
	function toDashedAll( str ) {
		return str.replace( /([A-Z])/g, function( $1 ) {
			return '-' + $1.toLowerCase();
		});
	}

	var transitionProps = 'opacity,' + toDashedAll( transformProperty );

	proto.enableTransition = function(/* style */) {
		// HACK changing transitionProperty during a transition
		// will cause transition to jump
		if ( this.isTransitioning ) {
			return;
		}

		// make `transition: foo, bar, baz` from style object
		// HACK un-comment this when enableTransition can work
		// while a transition is happening
		// var transitionValues = [];
		// for ( var prop in style ) {
		//   // dash-ify camelCased properties like WebkitTransition
		//   prop = vendorProperties[ prop ] || prop;
		//   transitionValues.push( toDashedAll( prop ) );
		// }
		// munge number to millisecond, to match stagger
		var duration = this.layout.options.transitionDuration;
		duration = typeof duration == 'number' ? duration + 'ms' : duration;
		// enable transition styles
		this.css({
			transitionProperty: transitionProps,
			transitionDuration: duration,
			transitionDelay: this.staggerDelay || 0
		});
		// listen for transition end event
		this.element.addEventListener( transitionEndEvent, this, false );
	};

// ----- events ----- //

	proto.onwebkitTransitionEnd = function( event ) {
		this.ontransitionend( event );
	};

	proto.onotransitionend = function( event ) {
		this.ontransitionend( event );
	};

// properties that I munge to make my life easier
	var dashedVendorProperties = {
		'-webkit-transform': 'transform'
	};

	proto.ontransitionend = function( event ) {
		// disregard bubbled events from children
		if ( event.target !== this.element ) {
			return;
		}
		var _transition = this._transn;
		// get property name of transitioned property, convert to prefix-free
		var propertyName = dashedVendorProperties[ event.propertyName ] || event.propertyName;

		// remove property that has completed transitioning
		delete _transition.ingProperties[ propertyName ];
		// check if any properties are still transitioning
		if ( isEmptyObj( _transition.ingProperties ) ) {
			// all properties have completed transitioning
			this.disableTransition();
		}
		// clean style
		if ( propertyName in _transition.clean ) {
			// clean up style
			this.element.style[ event.propertyName ] = '';
			delete _transition.clean[ propertyName ];
		}
		// trigger onTransitionEnd callback
		if ( propertyName in _transition.onEnd ) {
			var onTransitionEnd = _transition.onEnd[ propertyName ];
			onTransitionEnd.call( this );
			delete _transition.onEnd[ propertyName ];
		}

		this.emitEvent( 'transitionEnd', [ this ] );
	};

	proto.disableTransition = function() {
		this.removeTransitionStyles();
		this.element.removeEventListener( transitionEndEvent, this, false );
		this.isTransitioning = false;
	};

	/**
	 * removes style property from element
	 * @param {Object} style
	 **/
	proto._removeStyles = function( style ) {
		// clean up transition styles
		var cleanStyle = {};
		for ( var prop in style ) {
			cleanStyle[ prop ] = '';
		}
		this.css( cleanStyle );
	};

	var cleanTransitionStyle = {
		transitionProperty: '',
		transitionDuration: '',
		transitionDelay: ''
	};

	proto.removeTransitionStyles = function() {
		// remove transition
		this.css( cleanTransitionStyle );
	};

// ----- stagger ----- //

	proto.stagger = function( delay ) {
		delay = isNaN( delay ) ? 0 : delay;
		this.staggerDelay = delay + 'ms';
	};

// ----- show/hide/remove ----- //

// remove element from DOM
	proto.removeElem = function() {
		this.element.parentNode.removeChild( this.element );
		// remove display: none
		this.css({ display: '' });
		this.emitEvent( 'remove', [ this ] );
	};

	proto.remove = function() {
		// just remove element if no transition support or no transition
		if ( !transitionProperty || !parseFloat( this.layout.options.transitionDuration ) ) {
			this.removeElem();
			return;
		}

		// start transition
		this.once( 'transitionEnd', function() {
			this.removeElem();
		});
		this.hide();
	};

	proto.reveal = function() {
		delete this.isHidden;
		// remove display: none
		this.css({ display: '' });

		var options = this.layout.options;

		var onTransitionEnd = {};
		var transitionEndProperty = this.getHideRevealTransitionEndProperty('visibleStyle');
		onTransitionEnd[ transitionEndProperty ] = this.onRevealTransitionEnd;

		this.transition({
			from: options.hiddenStyle,
			to: options.visibleStyle,
			isCleaning: true,
			onTransitionEnd: onTransitionEnd
		});
	};

	proto.onRevealTransitionEnd = function() {
		// check if still visible
		// during transition, item may have been hidden
		if ( !this.isHidden ) {
			this.emitEvent('reveal');
		}
	};

	/**
	 * get style property use for hide/reveal transition end
	 * @param {String} styleProperty - hiddenStyle/visibleStyle
	 * @returns {String}
	 */
	proto.getHideRevealTransitionEndProperty = function( styleProperty ) {
		var optionStyle = this.layout.options[ styleProperty ];
		// use opacity
		if ( optionStyle.opacity ) {
			return 'opacity';
		}
		// get first property
		for ( var prop in optionStyle ) {
			return prop;
		}
	};

	proto.hide = function() {
		// set flag
		this.isHidden = true;
		// remove display: none
		this.css({ display: '' });

		var options = this.layout.options;

		var onTransitionEnd = {};
		var transitionEndProperty = this.getHideRevealTransitionEndProperty('hiddenStyle');
		onTransitionEnd[ transitionEndProperty ] = this.onHideTransitionEnd;

		this.transition({
			from: options.visibleStyle,
			to: options.hiddenStyle,
			// keep hidden stuff hidden
			isCleaning: true,
			onTransitionEnd: onTransitionEnd
		});
	};

	proto.onHideTransitionEnd = function() {
		// check if still hidden
		// during transition, item may have been un-hidden
		if ( this.isHidden ) {
			this.css({ display: 'none' });
			this.emitEvent('hide');
		}
	};

	proto.destroy = function() {
		this.css({
			position: '',
			left: '',
			right: '',
			top: '',
			bottom: '',
			transition: '',
			transform: ''
		});
	};

	return Item;

}));

/*!
 * Outlayer v2.1.1
 * the brains and guts of a layout library
 * MIT license
 */

( function( window, factory ) {
	'use strict';
	// universal module definition
	/* jshint strict: false */ /* globals define, module, require */
	if ( typeof define == 'function' && define.amd ) {
		// AMD - RequireJS
		define( 'outlayer/outlayer',[
				'ev-emitter/ev-emitter',
				'get-size/get-size',
				'fizzy-ui-utils/utils',
				'./item'
			],
			function( EvEmitter, getSize, utils, Item ) {
				return factory( window, EvEmitter, getSize, utils, Item);
			}
		);
	} else if ( typeof module == 'object' && module.exports ) {
		// CommonJS - Browserify, Webpack
		module.exports = factory(
			window,
			require('ev-emitter'),
			require('get-size'),
			require('fizzy-ui-utils'),
			require('./item')
		);
	} else {
		// browser global
		window.Outlayer = factory(
			window,
			window.EvEmitter,
			window.getSize,
			window.fizzyUIUtils,
			window.Outlayer.Item
		);
	}

}( window, function factory( window, EvEmitter, getSize, utils, Item ) {
	'use strict';

// ----- vars ----- //

	var console = window.console;
	var jQuery = window.jQuery;
	var noop = function() {};

// -------------------------- Outlayer -------------------------- //

// globally unique identifiers
	var GUID = 0;
// internal store of all Outlayer intances
	var instances = {};


	/**
	 * @param {Element, String} element
	 * @param {Object} options
	 * @constructor
	 */
	function Outlayer( element, options ) {
		var queryElement = utils.getQueryElement( element );
		if ( !queryElement ) {
			if ( console ) {
				console.error( 'Bad element for ' + this.constructor.namespace +
					': ' + ( queryElement || element ) );
			}
			return;
		}
		this.element = queryElement;
		// add jQuery
		if ( jQuery ) {
			this.$element = jQuery( this.element );
		}

		// options
		this.options = utils.extend( {}, this.constructor.defaults );
		this.option( options );

		// add id for Outlayer.getFromElement
		var id = ++GUID;
		this.element.outlayerGUID = id; // expando
		instances[ id ] = this; // associate via id

		// kick it off
		this._create();

		var isInitLayout = this._getOption('initLayout');
		if ( isInitLayout ) {
			this.layout();
		}
	}

// settings are for internal use only
	Outlayer.namespace = 'outlayer';
	Outlayer.Item = Item;

// default options
	Outlayer.defaults = {
		containerStyle: {
			position: 'relative'
		},
		initLayout: true,
		originLeft: true,
		originTop: true,
		resize: true,
		resizeContainer: true,
		// item options
		transitionDuration: '0.4s',
		hiddenStyle: {
			opacity: 0,
			transform: 'scale(0.001)'
		},
		visibleStyle: {
			opacity: 1,
			transform: 'scale(1)'
		}
	};

	var proto = Outlayer.prototype;
// inherit EvEmitter
	utils.extend( proto, EvEmitter.prototype );

	/**
	 * set options
	 * @param {Object} opts
	 */
	proto.option = function( opts ) {
		utils.extend( this.options, opts );
	};

	/**
	 * get backwards compatible option value, check old name
	 */
	proto._getOption = function( option ) {
		var oldOption = this.constructor.compatOptions[ option ];
		return oldOption && this.options[ oldOption ] !== undefined ?
			this.options[ oldOption ] : this.options[ option ];
	};

	Outlayer.compatOptions = {
		// currentName: oldName
		initLayout: 'isInitLayout',
		horizontal: 'isHorizontal',
		layoutInstant: 'isLayoutInstant',
		originLeft: 'isOriginLeft',
		originTop: 'isOriginTop',
		resize: 'isResizeBound',
		resizeContainer: 'isResizingContainer'
	};

	proto._create = function() {
		// get items from children
		this.reloadItems();
		// elements that affect layout, but are not laid out
		this.stamps = [];
		this.stamp( this.options.stamp );
		// set container style
		utils.extend( this.element.style, this.options.containerStyle );

		// bind resize method
		var canBindResize = this._getOption('resize');
		if ( canBindResize ) {
			this.bindResize();
		}
	};

// goes through all children again and gets bricks in proper order
	proto.reloadItems = function() {
		// collection of item elements
		this.items = this._itemize( this.element.children );
	};


	/**
	 * turn elements into Outlayer.Items to be used in layout
	 * @param {Array or NodeList or HTMLElement} elems
	 * @returns {Array} items - collection of new Outlayer Items
	 */
	proto._itemize = function( elems ) {

		var itemElems = this._filterFindItemElements( elems );
		var Item = this.constructor.Item;

		// create new Outlayer Items for collection
		var items = [];
		for ( var i=0; i < itemElems.length; i++ ) {
			var elem = itemElems[i];
			var item = new Item( elem, this );
			items.push( item );
		}

		return items;
	};

	/**
	 * get item elements to be used in layout
	 * @param {Array or NodeList or HTMLElement} elems
	 * @returns {Array} items - item elements
	 */
	proto._filterFindItemElements = function( elems ) {
		return utils.filterFindElements( elems, this.options.itemSelector );
	};

	/**
	 * getter method for getting item elements
	 * @returns {Array} elems - collection of item elements
	 */
	proto.getItemElements = function() {
		return this.items.map( function( item ) {
			return item.element;
		});
	};

// ----- init & layout ----- //

	/**
	 * lays out all items
	 */
	proto.layout = function() {
		this._resetLayout();
		this._manageStamps();

		// don't animate first layout
		var layoutInstant = this._getOption('layoutInstant');
		var isInstant = layoutInstant !== undefined ?
			layoutInstant : !this._isLayoutInited;
		this.layoutItems( this.items, isInstant );

		// flag for initalized
		this._isLayoutInited = true;
	};

// _init is alias for layout
	proto._init = proto.layout;

	/**
	 * logic before any new layout
	 */
	proto._resetLayout = function() {
		this.getSize();
	};


	proto.getSize = function() {
		this.size = getSize( this.element );
	};

	/**
	 * get measurement from option, for columnWidth, rowHeight, gutter
	 * if option is String -> get element from selector string, & get size of element
	 * if option is Element -> get size of element
	 * else use option as a number
	 *
	 * @param {String} measurement
	 * @param {String} size - width or height
	 * @private
	 */
	proto._getMeasurement = function( measurement, size ) {
		var option = this.options[ measurement ];
		var elem;
		if ( !option ) {
			// default to 0
			this[ measurement ] = 0;
		} else {
			// use option as an element
			if ( typeof option == 'string' ) {
				elem = this.element.querySelector( option );
			} else if ( option instanceof HTMLElement ) {
				elem = option;
			}
			// use size of element, if element
			this[ measurement ] = elem ? getSize( elem )[ size ] : option;
		}
	};

	/**
	 * layout a collection of item elements
	 * @api public
	 */
	proto.layoutItems = function( items, isInstant ) {
		items = this._getItemsForLayout( items );

		this._layoutItems( items, isInstant );

		this._postLayout();
	};

	/**
	 * get the items to be laid out
	 * you may want to skip over some items
	 * @param {Array} items
	 * @returns {Array} items
	 */
	proto._getItemsForLayout = function( items ) {
		return items.filter( function( item ) {
			return !item.isIgnored;
		});
	};

	/**
	 * layout items
	 * @param {Array} items
	 * @param {Boolean} isInstant
	 */
	proto._layoutItems = function( items, isInstant ) {
		this._emitCompleteOnItems( 'layout', items );

		if ( !items || !items.length ) {
			// no items, emit event with empty array
			return;
		}

		var queue = [];

		items.forEach( function( item ) {
			// get x/y object from method
			var position = this._getItemLayoutPosition( item );
			// enqueue
			position.item = item;
			position.isInstant = isInstant || item.isLayoutInstant;
			queue.push( position );
		}, this );

		this._processLayoutQueue( queue );
	};

	/**
	 * get item layout position
	 * @param {Outlayer.Item} item
	 * @returns {Object} x and y position
	 */
	proto._getItemLayoutPosition = function( /* item */ ) {
		return {
			x: 0,
			y: 0
		};
	};

	/**
	 * iterate over array and position each item
	 * Reason being - separating this logic prevents 'layout invalidation'
	 * thx @paul_irish
	 * @param {Array} queue
	 */
	proto._processLayoutQueue = function( queue ) {
		this.updateStagger();
		queue.forEach( function( obj, i ) {
			this._positionItem( obj.item, obj.x, obj.y, obj.isInstant, i );
		}, this );
	};

// set stagger from option in milliseconds number
	proto.updateStagger = function() {
		var stagger = this.options.stagger;
		if ( stagger === null || stagger === undefined ) {
			this.stagger = 0;
			return;
		}
		this.stagger = getMilliseconds( stagger );
		return this.stagger;
	};

	/**
	 * Sets position of item in DOM
	 * @param {Outlayer.Item} item
	 * @param {Number} x - horizontal position
	 * @param {Number} y - vertical position
	 * @param {Boolean} isInstant - disables transitions
	 */
	proto._positionItem = function( item, x, y, isInstant, i ) {
		if ( isInstant ) {
			// if not transition, just set CSS
			item.goTo( x, y );
		} else {
			item.stagger( i * this.stagger );
			item.moveTo( x, y );
		}
	};

	/**
	 * Any logic you want to do after each layout,
	 * i.e. size the container
	 */
	proto._postLayout = function() {
		this.resizeContainer();
	};

	proto.resizeContainer = function() {
		var isResizingContainer = this._getOption('resizeContainer');
		if ( !isResizingContainer ) {
			return;
		}
		var size = this._getContainerSize();
		if ( size ) {
			this._setContainerMeasure( size.width, true );
			this._setContainerMeasure( size.height, false );
		}
	};

	/**
	 * Sets width or height of container if returned
	 * @returns {Object} size
	 *   @param {Number} width
	 *   @param {Number} height
	 */
	proto._getContainerSize = noop;

	/**
	 * @param {Number} measure - size of width or height
	 * @param {Boolean} isWidth
	 */
	proto._setContainerMeasure = function( measure, isWidth ) {
		if ( measure === undefined ) {
			return;
		}

		var elemSize = this.size;
		// add padding and border width if border box
		if ( elemSize.isBorderBox ) {
			measure += isWidth ? elemSize.paddingLeft + elemSize.paddingRight +
				elemSize.borderLeftWidth + elemSize.borderRightWidth :
				elemSize.paddingBottom + elemSize.paddingTop +
				elemSize.borderTopWidth + elemSize.borderBottomWidth;
		}

		measure = Math.max( measure, 0 );
		this.element.style[ isWidth ? 'width' : 'height' ] = measure + 'px';
	};

	/**
	 * emit eventComplete on a collection of items events
	 * @param {String} eventName
	 * @param {Array} items - Outlayer.Items
	 */
	proto._emitCompleteOnItems = function( eventName, items ) {
		var _this = this;
		function onComplete() {
			_this.dispatchEvent( eventName + 'Complete', null, [ items ] );
		}

		var count = items.length;
		if ( !items || !count ) {
			onComplete();
			return;
		}

		var doneCount = 0;
		function tick() {
			doneCount++;
			if ( doneCount == count ) {
				onComplete();
			}
		}

		// bind callback
		items.forEach( function( item ) {
			item.once( eventName, tick );
		});
	};

	/**
	 * emits events via EvEmitter and jQuery events
	 * @param {String} type - name of event
	 * @param {Event} event - original event
	 * @param {Array} args - extra arguments
	 */
	proto.dispatchEvent = function( type, event, args ) {
		// add original event to arguments
		var emitArgs = event ? [ event ].concat( args ) : args;
		this.emitEvent( type, emitArgs );

		if ( jQuery ) {
			// set this.$element
			this.$element = this.$element || jQuery( this.element );
			if ( event ) {
				// create jQuery event
				var $event = jQuery.Event( event );
				$event.type = type;
				this.$element.trigger( $event, args );
			} else {
				// just trigger with type if no event available
				this.$element.trigger( type, args );
			}
		}
	};

// -------------------------- ignore & stamps -------------------------- //


	/**
	 * keep item in collection, but do not lay it out
	 * ignored items do not get skipped in layout
	 * @param {Element} elem
	 */
	proto.ignore = function( elem ) {
		var item = this.getItem( elem );
		if ( item ) {
			item.isIgnored = true;
		}
	};

	/**
	 * return item to layout collection
	 * @param {Element} elem
	 */
	proto.unignore = function( elem ) {
		var item = this.getItem( elem );
		if ( item ) {
			delete item.isIgnored;
		}
	};

	/**
	 * adds elements to stamps
	 * @param {NodeList, Array, Element, or String} elems
	 */
	proto.stamp = function( elems ) {
		elems = this._find( elems );
		if ( !elems ) {
			return;
		}

		this.stamps = this.stamps.concat( elems );
		// ignore
		elems.forEach( this.ignore, this );
	};

	/**
	 * removes elements to stamps
	 * @param {NodeList, Array, or Element} elems
	 */
	proto.unstamp = function( elems ) {
		elems = this._find( elems );
		if ( !elems ){
			return;
		}

		elems.forEach( function( elem ) {
			// filter out removed stamp elements
			utils.removeFrom( this.stamps, elem );
			this.unignore( elem );
		}, this );
	};

	/**
	 * finds child elements
	 * @param {NodeList, Array, Element, or String} elems
	 * @returns {Array} elems
	 */
	proto._find = function( elems ) {
		if ( !elems ) {
			return;
		}
		// if string, use argument as selector string
		if ( typeof elems == 'string' ) {
			elems = this.element.querySelectorAll( elems );
		}
		elems = utils.makeArray( elems );
		return elems;
	};

	proto._manageStamps = function() {
		if ( !this.stamps || !this.stamps.length ) {
			return;
		}

		this._getBoundingRect();

		this.stamps.forEach( this._manageStamp, this );
	};

// update boundingLeft / Top
	proto._getBoundingRect = function() {
		// get bounding rect for container element
		var boundingRect = this.element.getBoundingClientRect();
		var size = this.size;
		this._boundingRect = {
			left: boundingRect.left + size.paddingLeft + size.borderLeftWidth,
			top: boundingRect.top + size.paddingTop + size.borderTopWidth,
			right: boundingRect.right - ( size.paddingRight + size.borderRightWidth ),
			bottom: boundingRect.bottom - ( size.paddingBottom + size.borderBottomWidth )
		};
	};

	/**
	 * @param {Element} stamp
	 **/
	proto._manageStamp = noop;

	/**
	 * get x/y position of element relative to container element
	 * @param {Element} elem
	 * @returns {Object} offset - has left, top, right, bottom
	 */
	proto._getElementOffset = function( elem ) {
		var boundingRect = elem.getBoundingClientRect();
		var thisRect = this._boundingRect;
		var size = getSize( elem );
		var offset = {
			left: boundingRect.left - thisRect.left - size.marginLeft,
			top: boundingRect.top - thisRect.top - size.marginTop,
			right: thisRect.right - boundingRect.right - size.marginRight,
			bottom: thisRect.bottom - boundingRect.bottom - size.marginBottom
		};
		return offset;
	};

// -------------------------- resize -------------------------- //

// enable event handlers for listeners
// i.e. resize -> onresize
	proto.handleEvent = utils.handleEvent;

	/**
	 * Bind layout to window resizing
	 */
	proto.bindResize = function() {
		window.addEventListener( 'resize', this );
		this.isResizeBound = true;
	};

	/**
	 * Unbind layout to window resizing
	 */
	proto.unbindResize = function() {
		window.removeEventListener( 'resize', this );
		this.isResizeBound = false;
	};

	proto.onresize = function() {
		this.resize();
	};

	utils.debounceMethod( Outlayer, 'onresize', 100 );

	proto.resize = function() {
		// don't trigger if size did not change
		// or if resize was unbound. See #9
		if ( !this.isResizeBound || !this.needsResizeLayout() ) {
			return;
		}

		this.layout();
	};

	/**
	 * check if layout is needed post layout
	 * @returns Boolean
	 */
	proto.needsResizeLayout = function() {
		var size = getSize( this.element );
		// check that this.size and size are there
		// IE8 triggers resize on body size change, so they might not be
		var hasSizes = this.size && size;
		return hasSizes && size.innerWidth !== this.size.innerWidth;
	};

// -------------------------- methods -------------------------- //

	/**
	 * add items to Outlayer instance
	 * @param {Array or NodeList or Element} elems
	 * @returns {Array} items - Outlayer.Items
	 **/
	proto.addItems = function( elems ) {
		var items = this._itemize( elems );
		// add items to collection
		if ( items.length ) {
			this.items = this.items.concat( items );
		}
		return items;
	};

	/**
	 * Layout newly-appended item elements
	 * @param {Array or NodeList or Element} elems
	 */
	proto.appended = function( elems ) {
		var items = this.addItems( elems );
		if ( !items.length ) {
			return;
		}
		// layout and reveal just the new items
		this.layoutItems( items, true );
		this.reveal( items );
	};

	/**
	 * Layout prepended elements
	 * @param {Array or NodeList or Element} elems
	 */
	proto.prepended = function( elems ) {
		var items = this._itemize( elems );
		if ( !items.length ) {
			return;
		}
		// add items to beginning of collection
		var previousItems = this.items.slice(0);
		this.items = items.concat( previousItems );
		// start new layout
		this._resetLayout();
		this._manageStamps();
		// layout new stuff without transition
		this.layoutItems( items, true );
		this.reveal( items );
		// layout previous items
		this.layoutItems( previousItems );
	};

	/**
	 * reveal a collection of items
	 * @param {Array of Outlayer.Items} items
	 */
	proto.reveal = function( items ) {
		this._emitCompleteOnItems( 'reveal', items );
		if ( !items || !items.length ) {
			return;
		}
		var stagger = this.updateStagger();
		items.forEach( function( item, i ) {
			item.stagger( i * stagger );
			item.reveal();
		});
	};

	/**
	 * hide a collection of items
	 * @param {Array of Outlayer.Items} items
	 */
	proto.hide = function( items ) {
		this._emitCompleteOnItems( 'hide', items );
		if ( !items || !items.length ) {
			return;
		}
		var stagger = this.updateStagger();
		items.forEach( function( item, i ) {
			item.stagger( i * stagger );
			item.hide();
		});
	};

	/**
	 * reveal item elements
	 * @param {Array}, {Element}, {NodeList} items
	 */
	proto.revealItemElements = function( elems ) {
		var items = this.getItems( elems );
		this.reveal( items );
	};

	/**
	 * hide item elements
	 * @param {Array}, {Element}, {NodeList} items
	 */
	proto.hideItemElements = function( elems ) {
		var items = this.getItems( elems );
		this.hide( items );
	};

	/**
	 * get Outlayer.Item, given an Element
	 * @param {Element} elem
	 * @param {Function} callback
	 * @returns {Outlayer.Item} item
	 */
	proto.getItem = function( elem ) {
		// loop through items to get the one that matches
		for ( var i=0; i < this.items.length; i++ ) {
			var item = this.items[i];
			if ( item.element == elem ) {
				// return item
				return item;
			}
		}
	};

	/**
	 * get collection of Outlayer.Items, given Elements
	 * @param {Array} elems
	 * @returns {Array} items - Outlayer.Items
	 */
	proto.getItems = function( elems ) {
		elems = utils.makeArray( elems );
		var items = [];
		elems.forEach( function( elem ) {
			var item = this.getItem( elem );
			if ( item ) {
				items.push( item );
			}
		}, this );

		return items;
	};

	/**
	 * remove element(s) from instance and DOM
	 * @param {Array or NodeList or Element} elems
	 */
	proto.remove = function( elems ) {
		var removeItems = this.getItems( elems );

		this._emitCompleteOnItems( 'remove', removeItems );

		// bail if no items to remove
		if ( !removeItems || !removeItems.length ) {
			return;
		}

		removeItems.forEach( function( item ) {
			item.remove();
			// remove item from collection
			utils.removeFrom( this.items, item );
		}, this );
	};

// ----- destroy ----- //

// remove and disable Outlayer instance
	proto.destroy = function() {
		// clean up dynamic styles
		var style = this.element.style;
		style.height = '';
		style.position = '';
		style.width = '';
		// destroy items
		this.items.forEach( function( item ) {
			item.destroy();
		});

		this.unbindResize();

		var id = this.element.outlayerGUID;
		delete instances[ id ]; // remove reference to instance by id
		delete this.element.outlayerGUID;
		// remove data for jQuery
		if ( jQuery ) {
			jQuery.removeData( this.element, this.constructor.namespace );
		}

	};

// -------------------------- data -------------------------- //

	/**
	 * get Outlayer instance from element
	 * @param {Element} elem
	 * @returns {Outlayer}
	 */
	Outlayer.data = function( elem ) {
		elem = utils.getQueryElement( elem );
		var id = elem && elem.outlayerGUID;
		return id && instances[ id ];
	};


// -------------------------- create Outlayer class -------------------------- //

	/**
	 * create a layout class
	 * @param {String} namespace
	 */
	Outlayer.create = function( namespace, options ) {
		// sub-class Outlayer
		var Layout = subclass( Outlayer );
		// apply new options and compatOptions
		Layout.defaults = utils.extend( {}, Outlayer.defaults );
		utils.extend( Layout.defaults, options );
		Layout.compatOptions = utils.extend( {}, Outlayer.compatOptions  );

		Layout.namespace = namespace;

		Layout.data = Outlayer.data;

		// sub-class Item
		Layout.Item = subclass( Item );

		// -------------------------- declarative -------------------------- //

		utils.htmlInit( Layout, namespace );

		// -------------------------- jQuery bridge -------------------------- //

		// make into jQuery plugin
		if ( jQuery && jQuery.bridget ) {
			jQuery.bridget( namespace, Layout );
		}

		return Layout;
	};

	function subclass( Parent ) {
		function SubClass() {
			Parent.apply( this, arguments );
		}

		SubClass.prototype = Object.create( Parent.prototype );
		SubClass.prototype.constructor = SubClass;

		return SubClass;
	}

// ----- helpers ----- //

// how many milliseconds are in each unit
	var msUnits = {
		ms: 1,
		s: 1000
	};

// munge time-like parameter into millisecond number
// '0.4s' -> 40
	function getMilliseconds( time ) {
		if ( typeof time == 'number' ) {
			return time;
		}
		var matches = time.match( /(^\d*\.?\d*)(\w*)/ );
		var num = matches && matches[1];
		var unit = matches && matches[2];
		if ( !num.length ) {
			return 0;
		}
		num = parseFloat( num );
		var mult = msUnits[ unit ] || 1;
		return num * mult;
	}

// ----- fin ----- //

// back in global
	Outlayer.Item = Item;

	return Outlayer;

}));

/**
 * Rect
 * low-level utility class for basic geometry
 */

( function( window, factory ) {
	// universal module definition
	/* jshint strict: false */ /* globals define, module */
	if ( typeof define == 'function' && define.amd ) {
		// AMD
		define( 'packery/js/rect',factory );
	} else if ( typeof module == 'object' && module.exports ) {
		// CommonJS
		module.exports = factory();
	} else {
		// browser global
		window.Packery = window.Packery || {};
		window.Packery.Rect = factory();
	}

}( window, function factory() {
	'use strict';

// -------------------------- Rect -------------------------- //

	function Rect( props ) {
		// extend properties from defaults
		for ( var prop in Rect.defaults ) {
			this[ prop ] = Rect.defaults[ prop ];
		}

		for ( prop in props ) {
			this[ prop ] = props[ prop ];
		}

	}

	Rect.defaults = {
		x: 0,
		y: 0,
		width: 0,
		height: 0
	};

	var proto = Rect.prototype;

	/**
	 * Determines whether or not this rectangle wholly encloses another rectangle or point.
	 * @param {Rect} rect
	 * @returns {Boolean}
	 **/
	proto.contains = function( rect ) {
		// points don't have width or height
		var otherWidth = rect.width || 0;
		var otherHeight = rect.height || 0;
		return this.x <= rect.x &&
			this.y <= rect.y &&
			this.x + this.width >= rect.x + otherWidth &&
			this.y + this.height >= rect.y + otherHeight;
	};

	/**
	 * Determines whether or not the rectangle intersects with another.
	 * @param {Rect} rect
	 * @returns {Boolean}
	 **/
	proto.overlaps = function( rect ) {
		var thisRight = this.x + this.width;
		var thisBottom = this.y + this.height;
		var rectRight = rect.x + rect.width;
		var rectBottom = rect.y + rect.height;

		// http://stackoverflow.com/a/306332
		return this.x < rectRight &&
			thisRight > rect.x &&
			this.y < rectBottom &&
			thisBottom > rect.y;
	};

	/**
	 * @param {Rect} rect - the overlapping rect
	 * @returns {Array} freeRects - rects representing the area around the rect
	 **/
	proto.getMaximalFreeRects = function( rect ) {

		// if no intersection, return false
		if ( !this.overlaps( rect ) ) {
			return false;
		}

		var freeRects = [];
		var freeRect;

		var thisRight = this.x + this.width;
		var thisBottom = this.y + this.height;
		var rectRight = rect.x + rect.width;
		var rectBottom = rect.y + rect.height;

		// top
		if ( this.y < rect.y ) {
			freeRect = new Rect({
				x: this.x,
				y: this.y,
				width: this.width,
				height: rect.y - this.y
			});
			freeRects.push( freeRect );
		}

		// right
		if ( thisRight > rectRight ) {
			freeRect = new Rect({
				x: rectRight,
				y: this.y,
				width: thisRight - rectRight,
				height: this.height
			});
			freeRects.push( freeRect );
		}

		// bottom
		if ( thisBottom > rectBottom ) {
			freeRect = new Rect({
				x: this.x,
				y: rectBottom,
				width: this.width,
				height: thisBottom - rectBottom
			});
			freeRects.push( freeRect );
		}

		// left
		if ( this.x < rect.x ) {
			freeRect = new Rect({
				x: this.x,
				y: this.y,
				width: rect.x - this.x,
				height: this.height
			});
			freeRects.push( freeRect );
		}

		return freeRects;
	};

	proto.canFit = function( rect ) {
		return this.width >= rect.width && this.height >= rect.height;
	};

	return Rect;

}));

/**
 * Packer
 * bin-packing algorithm
 */

( function( window, factory ) {
	// universal module definition
	/* jshint strict: false */ /* globals define, module, require */
	if ( typeof define == 'function' && define.amd ) {
		// AMD
		define( 'packery/js/packer',[ './rect' ], factory );
	} else if ( typeof module == 'object' && module.exports ) {
		// CommonJS
		module.exports = factory(
			require('./rect')
		);
	} else {
		// browser global
		var Packery = window.Packery = window.Packery || {};
		Packery.Packer = factory( Packery.Rect );
	}

}( window, function factory( Rect ) {
	'use strict';

// -------------------------- Packer -------------------------- //

	/**
	 * @param {Number} width
	 * @param {Number} height
	 * @param {String} sortDirection
	 *   topLeft for vertical, leftTop for horizontal
	 */
	function Packer( width, height, sortDirection ) {
		this.width = width || 0;
		this.height = height || 0;
		this.sortDirection = sortDirection || 'downwardLeftToRight';

		this.reset();
	}

	var proto = Packer.prototype;

	proto.reset = function() {
		this.spaces = [];

		var initialSpace = new Rect({
			x: 0,
			y: 0,
			width: this.width,
			height: this.height
		});

		this.spaces.push( initialSpace );
		// set sorter
		this.sorter = sorters[ this.sortDirection ] || sorters.downwardLeftToRight;
	};

// change x and y of rect to fit with in Packer's available spaces
	proto.pack = function( rect ) {
		for ( var i=0; i < this.spaces.length; i++ ) {
			var space = this.spaces[i];
			if ( space.canFit( rect ) ) {
				this.placeInSpace( rect, space );
				break;
			}
		}
	};

	proto.columnPack = function( rect ) {
		for ( var i=0; i < this.spaces.length; i++ ) {
			var space = this.spaces[i];
			var canFitInSpaceColumn = space.x <= rect.x &&
				space.x + space.width >= rect.x + rect.width &&
				space.height >= rect.height - 0.01; // fudge number for rounding error
			if ( canFitInSpaceColumn ) {
				rect.y = space.y;
				this.placed( rect );
				break;
			}
		}
	};

	proto.rowPack = function( rect ) {
		for ( var i=0; i < this.spaces.length; i++ ) {
			var space = this.spaces[i];
			var canFitInSpaceRow = space.y <= rect.y &&
				space.y + space.height >= rect.y + rect.height &&
				space.width >= rect.width - 0.01; // fudge number for rounding error
			if ( canFitInSpaceRow ) {
				rect.x = space.x;
				this.placed( rect );
				break;
			}
		}
	};

	proto.placeInSpace = function( rect, space ) {
		// place rect in space
		rect.x = space.x;
		rect.y = space.y;

		this.placed( rect );
	};

// update spaces with placed rect
	proto.placed = function( rect ) {
		// update spaces
		var revisedSpaces = [];
		for ( var i=0; i < this.spaces.length; i++ ) {
			var space = this.spaces[i];
			var newSpaces = space.getMaximalFreeRects( rect );
			// add either the original space or the new spaces to the revised spaces
			if ( newSpaces ) {
				revisedSpaces.push.apply( revisedSpaces, newSpaces );
			} else {
				revisedSpaces.push( space );
			}
		}

		this.spaces = revisedSpaces;

		this.mergeSortSpaces();
	};

	proto.mergeSortSpaces = function() {
		// remove redundant spaces
		Packer.mergeRects( this.spaces );
		this.spaces.sort( this.sorter );
	};

// add a space back
	proto.addSpace = function( rect ) {
		this.spaces.push( rect );
		this.mergeSortSpaces();
	};

// -------------------------- utility functions -------------------------- //

	/**
	 * Remove redundant rectangle from array of rectangles
	 * @param {Array} rects: an array of Rects
	 * @returns {Array} rects: an array of Rects
	 **/
	Packer.mergeRects = function( rects ) {
		var i = 0;
		var rect = rects[i];

		rectLoop:
			while ( rect ) {
				var j = 0;
				var compareRect = rects[ i + j ];

				while ( compareRect ) {
					if  ( compareRect == rect ) {
						j++; // next
					} else if ( compareRect.contains( rect ) ) {
						// remove rect
						rects.splice( i, 1 );
						rect = rects[i]; // set next rect
						continue rectLoop; // bail on compareLoop
					} else if ( rect.contains( compareRect ) ) {
						// remove compareRect
						rects.splice( i + j, 1 );
					} else {
						j++;
					}
					compareRect = rects[ i + j ]; // set next compareRect
				}
				i++;
				rect = rects[i];
			}

		return rects;
	};


// -------------------------- sorters -------------------------- //

// functions for sorting rects in order
	var sorters = {
		// top down, then left to right
		downwardLeftToRight: function( a, b ) {
			return a.y - b.y || a.x - b.x;
		},
		// left to right, then top down
		rightwardTopToBottom: function( a, b ) {
			return a.x - b.x || a.y - b.y;
		}
	};


// --------------------------  -------------------------- //

	return Packer;

}));

/**
 * Packery Item Element
 **/

( function( window, factory ) {
	// universal module definition
	/* jshint strict: false */ /* globals define, module, require */
	if ( typeof define == 'function' && define.amd ) {
		// AMD
		define( 'packery/js/item',[
				'outlayer/outlayer',
				'./rect'
			],
			factory );
	} else if ( typeof module == 'object' && module.exports ) {
		// CommonJS
		module.exports = factory(
			require('outlayer'),
			require('./rect')
		);
	} else {
		// browser global
		window.Packery.Item = factory(
			window.Outlayer,
			window.Packery.Rect
		);
	}

}( window, function factory( Outlayer, Rect ) {
	'use strict';

// -------------------------- Item -------------------------- //

	var docElemStyle = document.documentElement.style;

	var transformProperty = typeof docElemStyle.transform == 'string' ?
		'transform' : 'WebkitTransform';

// sub-class Item
	var Item = function PackeryItem() {
		Outlayer.Item.apply( this, arguments );
	};

	var proto = Item.prototype = Object.create( Outlayer.Item.prototype );

	var __create = proto._create;
	proto._create = function() {
		// call default _create logic
		__create.call( this );
		this.rect = new Rect();
	};

	var _moveTo = proto.moveTo;
	proto.moveTo = function( x, y ) {
		// don't shift 1px while dragging
		var dx = Math.abs( this.position.x - x );
		var dy = Math.abs( this.position.y - y );

		var canHackGoTo = this.layout.dragItemCount && !this.isPlacing &&
			!this.isTransitioning && dx < 1 && dy < 1;
		if ( canHackGoTo ) {
			this.goTo( x, y );
			return;
		}
		_moveTo.apply( this, arguments );
	};

// -------------------------- placing -------------------------- //

	proto.enablePlacing = function() {
		this.removeTransitionStyles();
		// remove transform property from transition
		if ( this.isTransitioning && transformProperty ) {
			this.element.style[ transformProperty ] = 'none';
		}
		this.isTransitioning = false;
		this.getSize();
		this.layout._setRectSize( this.element, this.rect );
		this.isPlacing = true;
	};

	proto.disablePlacing = function() {
		this.isPlacing = false;
	};

// -----  ----- //

// remove element from DOM
	proto.removeElem = function() {
		var parent = this.element.parentNode;
		if ( parent ) {
			parent.removeChild( this.element );
		}
		// add space back to packer
		this.layout.packer.addSpace( this.rect );
		this.emitEvent( 'remove', [ this ] );
	};

// ----- dropPlaceholder ----- //

	proto.showDropPlaceholder = function() {
		var dropPlaceholder = this.dropPlaceholder;
		if ( !dropPlaceholder ) {
			// create dropPlaceholder
			dropPlaceholder = this.dropPlaceholder = document.createElement('div');
			dropPlaceholder.className = 'packery-drop-placeholder';
			dropPlaceholder.style.position = 'absolute';
		}

		dropPlaceholder.style.width = this.size.width + 'px';
		dropPlaceholder.style.height = this.size.height + 'px';
		this.positionDropPlaceholder();
		this.layout.element.appendChild( dropPlaceholder );
	};

	proto.positionDropPlaceholder = function() {
		this.dropPlaceholder.style[ transformProperty ] = 'translate(' +
			this.rect.x + 'px, ' + this.rect.y + 'px)';
	};

	proto.hideDropPlaceholder = function() {
		// only remove once, #333
		var parent = this.dropPlaceholder.parentNode;
		if ( parent ) {
			parent.removeChild( this.dropPlaceholder );
		}
	};

// -----  ----- //

	return Item;

}));

/*!
 * Packery v2.1.2
 * Gapless, draggable grid layouts
 *
 * Licensed GPLv3 for open source use
 * or Packery Commercial License for commercial use
 *
 * http://packery.metafizzy.co
 * Copyright 2013-2018 Metafizzy
 */

( function( window, factory ) {
	// universal module definition
	/* jshint strict: false */ /* globals define, module, require */
	if ( typeof define == 'function' && define.amd ) {
		// AMD
		define( [
				'get-size/get-size',
				'outlayer/outlayer',
				'packery/js/rect',
				'packery/js/packer',
				'packery/js/item'
			],
			factory );
	} else if ( typeof module == 'object' && module.exports ) {
		// CommonJS
		module.exports = factory(
			require('get-size'),
			require('outlayer'),
			require('./rect'),
			require('./packer'),
			require('./item')
		);
	} else {
		// browser global
		window.Packery = factory(
			window.getSize,
			window.Outlayer,
			window.Packery.Rect,
			window.Packery.Packer,
			window.Packery.Item
		);
	}

}( window, function factory( getSize, Outlayer, Rect, Packer, Item ) {
	'use strict';

// ----- Rect ----- //

// allow for pixel rounding errors IE8-IE11 & Firefox; #227
	Rect.prototype.canFit = function( rect ) {
		return this.width >= rect.width - 1 && this.height >= rect.height - 1;
	};

// -------------------------- Packery -------------------------- //

// create an Outlayer layout class
	var Packery = Outlayer.create('packery');
	Packery.Item = Item;

	var proto = Packery.prototype;

	proto._create = function() {
		// call super
		Outlayer.prototype._create.call( this );

		// initial properties
		this.packer = new Packer();
		// packer for drop targets
		this.shiftPacker = new Packer();
		this.isEnabled = true;

		this.dragItemCount = 0;

		// create drag handlers
		var _this = this;
		this.handleDraggabilly = {
			dragStart: function() {
				_this.itemDragStart( this.element );
			},
			dragMove: function() {
				_this.itemDragMove( this.element, this.position.x, this.position.y );
			},
			dragEnd: function() {
				_this.itemDragEnd( this.element );
			}
		};

		this.handleUIDraggable = {
			start: function handleUIDraggableStart( event, ui ) {
				// HTML5 may trigger dragstart, dismiss HTML5 dragging
				if ( !ui ) {
					return;
				}
				_this.itemDragStart( event.currentTarget );
			},
			drag: function handleUIDraggableDrag( event, ui ) {
				if ( !ui ) {
					return;
				}
				_this.itemDragMove( event.currentTarget, ui.position.left, ui.position.top );
			},
			stop: function handleUIDraggableStop( event, ui ) {
				if ( !ui ) {
					return;
				}
				_this.itemDragEnd( event.currentTarget );
			}
		};

	};


// ----- init & layout ----- //

	/**
	 * logic before any new layout
	 */
	proto._resetLayout = function() {
		this.getSize();

		this._getMeasurements();

		// reset packer
		var width, height, sortDirection;
		// packer settings, if horizontal or vertical
		if ( this._getOption('horizontal') ) {
			width = Infinity;
			height = this.size.innerHeight + this.gutter;
			sortDirection = 'rightwardTopToBottom';
		} else {
			width = this.size.innerWidth + this.gutter;
			height = Infinity;
			sortDirection = 'downwardLeftToRight';
		}

		this.packer.width = this.shiftPacker.width = width;
		this.packer.height = this.shiftPacker.height = height;
		this.packer.sortDirection = this.shiftPacker.sortDirection = sortDirection;

		this.packer.reset();

		// layout
		this.maxY = 0;
		this.maxX = 0;
	};

	/**
	 * update columnWidth, rowHeight, & gutter
	 * @private
	 */
	proto._getMeasurements = function() {
		this._getMeasurement( 'columnWidth', 'width' );
		this._getMeasurement( 'rowHeight', 'height' );
		this._getMeasurement( 'gutter', 'width' );
	};

	proto._getItemLayoutPosition = function( item ) {
		this._setRectSize( item.element, item.rect );
		if ( this.isShifting || this.dragItemCount > 0 ) {
			var packMethod = this._getPackMethod();
			this.packer[ packMethod ]( item.rect );
		} else {
			this.packer.pack( item.rect );
		}

		this._setMaxXY( item.rect );
		return item.rect;
	};

	proto.shiftLayout = function() {
		this.isShifting = true;
		this.layout();
		delete this.isShifting;
	};

	proto._getPackMethod = function() {
		return this._getOption('horizontal') ? 'rowPack' : 'columnPack';
	};


	/**
	 * set max X and Y value, for size of container
	 * @param {Packery.Rect} rect
	 * @private
	 */
	proto._setMaxXY = function( rect ) {
		this.maxX = Math.max( rect.x + rect.width, this.maxX );
		this.maxY = Math.max( rect.y + rect.height, this.maxY );
	};

	/**
	 * set the width and height of a rect, applying columnWidth and rowHeight
	 * @param {Element} elem
	 * @param {Packery.Rect} rect
	 */
	proto._setRectSize = function( elem, rect ) {
		var size = getSize( elem );
		var w = size.outerWidth;
		var h = size.outerHeight;
		// size for columnWidth and rowHeight, if available
		// only check if size is non-zero, #177
		if ( w || h ) {
			w = this._applyGridGutter( w, this.columnWidth );
			h = this._applyGridGutter( h, this.rowHeight );
		}
		// rect must fit in packer
		rect.width = Math.min( w, this.packer.width );
		rect.height = Math.min( h, this.packer.height );
	};

	/**
	 * fits item to columnWidth/rowHeight and adds gutter
	 * @param {Number} measurement - item width or height
	 * @param {Number} gridSize - columnWidth or rowHeight
	 * @returns measurement
	 */
	proto._applyGridGutter = function( measurement, gridSize ) {
		// just add gutter if no gridSize
		if ( !gridSize ) {
			return measurement + this.gutter;
		}
		gridSize += this.gutter;
		// fit item to columnWidth/rowHeight
		var remainder = measurement % gridSize;
		var mathMethod = remainder && remainder < 1 ? 'round' : 'ceil';
		measurement = Math[ mathMethod ]( measurement / gridSize ) * gridSize;
		return measurement;
	};

	proto._getContainerSize = function() {
		if ( this._getOption('horizontal') ) {
			return {
				width: this.maxX - this.gutter
			};
		} else {
			return {
				height: this.maxY - this.gutter
			};
		}
	};


// -------------------------- stamp -------------------------- //

	/**
	 * makes space for element
	 * @param {Element} elem
	 */
	proto._manageStamp = function( elem ) {

		var item = this.getItem( elem );
		var rect;
		if ( item && item.isPlacing ) {
			rect = item.rect;
		} else {
			var offset = this._getElementOffset( elem );
			rect = new Rect({
				x: this._getOption('originLeft') ? offset.left : offset.right,
				y: this._getOption('originTop') ? offset.top : offset.bottom
			});
		}

		this._setRectSize( elem, rect );
		// save its space in the packer
		this.packer.placed( rect );
		this._setMaxXY( rect );
	};

// -------------------------- methods -------------------------- //

	function verticalSorter( a, b ) {
		return a.position.y - b.position.y || a.position.x - b.position.x;
	}

	function horizontalSorter( a, b ) {
		return a.position.x - b.position.x || a.position.y - b.position.y;
	}

	proto.sortItemsByPosition = function() {
		var sorter = this._getOption('horizontal') ? horizontalSorter : verticalSorter;
		this.items.sort( sorter );
	};

	/**
	 * Fit item element in its current position
	 * Packery will position elements around it
	 * useful for expanding elements
	 *
	 * @param {Element} elem
	 * @param {Number} x - horizontal destination position, optional
	 * @param {Number} y - vertical destination position, optional
	 */
	proto.fit = function( elem, x, y ) {
		var item = this.getItem( elem );
		if ( !item ) {
			return;
		}

		// stamp item to get it out of layout
		this.stamp( item.element );
		// set placing flag
		item.enablePlacing();
		this.updateShiftTargets( item );
		// fall back to current position for fitting
		x = x === undefined ? item.rect.x: x;
		y = y === undefined ? item.rect.y: y;
		// position it best at its destination
		this.shift( item, x, y );
		this._bindFitEvents( item );
		item.moveTo( item.rect.x, item.rect.y );
		// layout everything else
		this.shiftLayout();
		// return back to regularly scheduled programming
		this.unstamp( item.element );
		this.sortItemsByPosition();
		item.disablePlacing();
	};

	/**
	 * emit event when item is fit and other items are laid out
	 * @param {Packery.Item} item
	 * @private
	 */
	proto._bindFitEvents = function( item ) {
		var _this = this;
		var ticks = 0;
		function onLayout() {
			ticks++;
			if ( ticks != 2 ) {
				return;
			}
			_this.dispatchEvent( 'fitComplete', null, [ item ] );
		}
		// when item is laid out
		item.once( 'layout', onLayout );
		// when all items are laid out
		this.once( 'layoutComplete', onLayout );
	};

// -------------------------- resize -------------------------- //

// debounced, layout on resize
	proto.resize = function() {
		// don't trigger if size did not change
		// or if resize was unbound. See #285, outlayer#9
		if ( !this.isResizeBound || !this.needsResizeLayout() ) {
			return;
		}

		if ( this.options.shiftPercentResize ) {
			this.resizeShiftPercentLayout();
		} else {
			this.layout();
		}
	};

	/**
	 * check if layout is needed post layout
	 * @returns Boolean
	 */
	proto.needsResizeLayout = function() {
		var size = getSize( this.element );
		var innerSize = this._getOption('horizontal') ? 'innerHeight' : 'innerWidth';
		return size[ innerSize ] != this.size[ innerSize ];
	};

	proto.resizeShiftPercentLayout = function() {
		var items = this._getItemsForLayout( this.items );

		var isHorizontal = this._getOption('horizontal');
		var coord = isHorizontal ? 'y' : 'x';
		var measure = isHorizontal ? 'height' : 'width';
		var segmentName = isHorizontal ? 'rowHeight' : 'columnWidth';
		var innerSize = isHorizontal ? 'innerHeight' : 'innerWidth';

		// proportional re-align items
		var previousSegment = this[ segmentName ];
		previousSegment = previousSegment && previousSegment + this.gutter;

		if ( previousSegment ) {
			this._getMeasurements();
			var currentSegment = this[ segmentName ] + this.gutter;
			items.forEach( function( item ) {
				var seg = Math.round( item.rect[ coord ] / previousSegment );
				item.rect[ coord ] = seg * currentSegment;
			});
		} else {
			var currentSize = getSize( this.element )[ innerSize ] + this.gutter;
			var previousSize = this.packer[ measure ];
			items.forEach( function( item ) {
				item.rect[ coord ] = ( item.rect[ coord ] / previousSize ) * currentSize;
			});
		}

		this.shiftLayout();
	};

// -------------------------- drag -------------------------- //

	/**
	 * handle an item drag start event
	 * @param {Element} elem
	 */
	proto.itemDragStart = function( elem ) {
		if ( !this.isEnabled ) {
			return;
		}
		this.stamp( elem );
		// this.ignore( elem );
		var item = this.getItem( elem );
		if ( !item ) {
			return;
		}

		item.enablePlacing();
		item.showDropPlaceholder();
		this.dragItemCount++;
		this.updateShiftTargets( item );
	};

	proto.updateShiftTargets = function( dropItem ) {
		this.shiftPacker.reset();

		// pack stamps
		this._getBoundingRect();
		var isOriginLeft = this._getOption('originLeft');
		var isOriginTop = this._getOption('originTop');
		this.stamps.forEach( function( stamp ) {
			// ignore dragged item
			var item = this.getItem( stamp );
			if ( item && item.isPlacing ) {
				return;
			}
			var offset = this._getElementOffset( stamp );
			var rect = new Rect({
				x: isOriginLeft ? offset.left : offset.right,
				y: isOriginTop ? offset.top : offset.bottom
			});
			this._setRectSize( stamp, rect );
			// save its space in the packer
			this.shiftPacker.placed( rect );
		}, this );

		// reset shiftTargets
		var isHorizontal = this._getOption('horizontal');
		var segmentName = isHorizontal ? 'rowHeight' : 'columnWidth';
		var measure = isHorizontal ? 'height' : 'width';

		this.shiftTargetKeys = [];
		this.shiftTargets = [];
		var boundsSize;
		var segment = this[ segmentName ];
		segment = segment && segment + this.gutter;

		if ( segment ) {
			var segmentSpan = Math.ceil( dropItem.rect[ measure ] / segment );
			var segs = Math.floor( ( this.shiftPacker[ measure ] + this.gutter ) / segment );
			boundsSize = ( segs - segmentSpan ) * segment;
			// add targets on top
			for ( var i=0; i < segs; i++ ) {
				var initialX = isHorizontal ? 0 : i * segment;
				var initialY = isHorizontal ? i * segment : 0;
				this._addShiftTarget( initialX, initialY, boundsSize );
			}
		} else {
			boundsSize = ( this.shiftPacker[ measure ] + this.gutter ) - dropItem.rect[ measure ];
			this._addShiftTarget( 0, 0, boundsSize );
		}

		// pack each item to measure where shiftTargets are
		var items = this._getItemsForLayout( this.items );
		var packMethod = this._getPackMethod();
		items.forEach( function( item ) {
			var rect = item.rect;
			this._setRectSize( item.element, rect );
			this.shiftPacker[ packMethod ]( rect );

			// add top left corner
			this._addShiftTarget( rect.x, rect.y, boundsSize );
			// add bottom left / top right corner
			var cornerX = isHorizontal ? rect.x + rect.width : rect.x;
			var cornerY = isHorizontal ? rect.y : rect.y + rect.height;
			this._addShiftTarget( cornerX, cornerY, boundsSize );

			if ( segment ) {
				// add targets for each column on bottom / row on right
				var segSpan = Math.round( rect[ measure ] / segment );
				for ( var i=1; i < segSpan; i++ ) {
					var segX = isHorizontal ? cornerX : rect.x + segment * i;
					var segY = isHorizontal ? rect.y + segment * i : cornerY;
					this._addShiftTarget( segX, segY, boundsSize );
				}
			}
		}, this );

	};

	proto._addShiftTarget = function( x, y, boundsSize ) {
		var checkCoord = this._getOption('horizontal') ? y : x;
		if ( checkCoord !== 0 && checkCoord > boundsSize ) {
			return;
		}
		// create string for a key, easier to keep track of what targets
		var key = x + ',' + y;
		var hasKey = this.shiftTargetKeys.indexOf( key ) != -1;
		if ( hasKey ) {
			return;
		}
		this.shiftTargetKeys.push( key );
		this.shiftTargets.push({ x: x, y: y });
	};

// -------------------------- drop -------------------------- //

	proto.shift = function( item, x, y ) {
		var shiftPosition;
		var minDistance = Infinity;
		var position = { x: x, y: y };
		this.shiftTargets.forEach( function( target ) {
			var distance = getDistance( target, position );
			if ( distance < minDistance ) {
				shiftPosition = target;
				minDistance = distance;
			}
		});
		item.rect.x = shiftPosition.x;
		item.rect.y = shiftPosition.y;
	};

	function getDistance( a, b ) {
		var dx = b.x - a.x;
		var dy = b.y - a.y;
		return Math.sqrt( dx * dx + dy * dy );
	}

// -------------------------- drag move -------------------------- //

	var DRAG_THROTTLE_TIME = 120;

	/**
	 * handle an item drag move event
	 * @param {Element} elem
	 * @param {Number} x - horizontal change in position
	 * @param {Number} y - vertical change in position
	 */
	proto.itemDragMove = function( elem, x, y ) {
		var item = this.isEnabled && this.getItem( elem );
		if ( !item ) {
			return;
		}

		x -= this.size.paddingLeft;
		y -= this.size.paddingTop;

		var _this = this;
		function onDrag() {
			_this.shift( item, x, y );
			item.positionDropPlaceholder();
			_this.layout();
		}

		// throttle
		var now = new Date();
		var isThrottled = this._itemDragTime && now - this._itemDragTime < DRAG_THROTTLE_TIME;
		if ( isThrottled ) {
			clearTimeout( this.dragTimeout );
			this.dragTimeout = setTimeout( onDrag, DRAG_THROTTLE_TIME );
		} else {
			onDrag();
			this._itemDragTime = now;
		}
	};

// -------------------------- drag end -------------------------- //

	/**
	 * handle an item drag end event
	 * @param {Element} elem
	 */
	proto.itemDragEnd = function( elem ) {
		var item = this.isEnabled && this.getItem( elem );
		if ( !item ) {
			return;
		}

		clearTimeout( this.dragTimeout );
		item.element.classList.add('is-positioning-post-drag');

		var completeCount = 0;
		var _this = this;
		function onDragEndLayoutComplete() {
			completeCount++;
			if ( completeCount != 2 ) {
				return;
			}
			// reset drag item
			item.element.classList.remove('is-positioning-post-drag');
			item.hideDropPlaceholder();
			_this.dispatchEvent( 'dragItemPositioned', null, [ item ] );
		}

		item.once( 'layout', onDragEndLayoutComplete );
		this.once( 'layoutComplete', onDragEndLayoutComplete );
		item.moveTo( item.rect.x, item.rect.y );
		this.layout();
		this.dragItemCount = Math.max( 0, this.dragItemCount - 1 );
		this.sortItemsByPosition();
		item.disablePlacing();
		this.unstamp( item.element );
	};

	/**
	 * binds Draggabilly events
	 * @param {Draggabilly} draggie
	 */
	proto.bindDraggabillyEvents = function( draggie ) {
		this._bindDraggabillyEvents( draggie, 'on' );
	};

	proto.unbindDraggabillyEvents = function( draggie ) {
		this._bindDraggabillyEvents( draggie, 'off' );
	};

	proto._bindDraggabillyEvents = function( draggie, method ) {
		var handlers = this.handleDraggabilly;
		draggie[ method ]( 'dragStart', handlers.dragStart );
		draggie[ method ]( 'dragMove', handlers.dragMove );
		draggie[ method ]( 'dragEnd', handlers.dragEnd );
	};

	/**
	 * binds jQuery UI Draggable events
	 * @param {jQuery} $elems
	 */
	proto.bindUIDraggableEvents = function( $elems ) {
		this._bindUIDraggableEvents( $elems, 'on' );
	};

	proto.unbindUIDraggableEvents = function( $elems ) {
		this._bindUIDraggableEvents( $elems, 'off' );
	};

	proto._bindUIDraggableEvents = function( $elems, method ) {
		var handlers = this.handleUIDraggable;
		$elems
			[ method ]( 'dragstart', handlers.start )
			[ method ]( 'drag', handlers.drag )
			[ method ]( 'dragstop', handlers.stop );
	};

// ----- destroy ----- //

	var _destroy = proto.destroy;
	proto.destroy = function() {
		_destroy.apply( this, arguments );
		// disable flag; prevent drag events from triggering. #72
		this.isEnabled = false;
	};

// -----  ----- //

	Packery.Rect = Rect;
	Packery.Packer = Packer;

	return Packery;

}));

