diff --git a/bower.json b/bower.json
index 8d5206e..87d5182 100644
--- a/bower.json
+++ b/bower.json
@@ -1,6 +1,6 @@
 {
   "name": "packery",
-  "version": "1.2.2",
+  "version": "1.2.3",
   "author": "David DeSandro / Metafizzy",
   "description": "bin-packing layout library",
   "main": [
diff --git a/dist/packery.pkgd.js b/dist/packery.pkgd.js
index 00ad83e..9e09b4d 100644
--- a/dist/packery.pkgd.js
+++ b/dist/packery.pkgd.js
@@ -1,5 +1,5 @@
 /*!
- * Packery PACKAGED v1.2.2
+ * Packery PACKAGED v1.2.3
  * bin-packing layout library
  * http://packery.metafizzy.co
  *
@@ -3234,7 +3234,7 @@ if ( typeof define === 'function' && define.amd ) {
 })( window );
 
 /*!
- * Packery v1.2.2
+ * Packery v1.2.3
  * bin-packing layout library
  * http://packery.metafizzy.co
  *
@@ -3683,13 +3683,13 @@ return Packery;
 
 if ( typeof define === 'function' && define.amd ) {
   // AMD
-  define( 'packery/js/packery',[
+  define( [
       'classie/classie',
       'get-size/get-size',
       'outlayer/outlayer',
-      './rect',
-      './packer',
-      './item'
+      'packery/js/rect',
+      'packery/js/packer',
+      'packery/js/item'
     ],
     packeryDefinition );
 } else {
diff --git a/dist/packery.pkgd.min.js b/dist/packery.pkgd.min.js
index 21f99d4..ae4f7c0 100644
--- a/dist/packery.pkgd.min.js
+++ b/dist/packery.pkgd.min.js
@@ -1,5 +1,5 @@
 /*!
- * Packery PACKAGED v1.2.2
+ * Packery PACKAGED v1.2.3
  * bin-packing layout library
  * http://packery.metafizzy.co
  *
@@ -12,4 +12,4 @@
  */
 
 (function(t){function e(){}function i(t){function i(e){e.prototype.option||(e.prototype.option=function(e){t.isPlainObject(e)&&(this.options=t.extend(!0,this.options,e))})}function o(e,i){t.fn[e]=function(o){if("string"==typeof o){for(var s=n.call(arguments,1),a=0,h=this.length;h>a;a++){var p=this[a],u=t.data(p,e);if(u)if(t.isFunction(u[o])&&"_"!==o.charAt(0)){var c=u[o].apply(u,s);if(void 0!==c)return c}else r("no such method '"+o+"' for "+e+" instance");else r("cannot call methods on "+e+" prior to initialization; "+"attempted to call '"+o+"'")}return this}return this.each(function(){var n=t.data(this,e);n?(n.option(o),n._init()):(n=new i(this,o),t.data(this,e,n))})}}if(t){var r="undefined"==typeof console?e:function(t){console.error(t)};return t.bridget=function(t,e){i(e),o(t,e)},t.bridget}}var n=Array.prototype.slice;"function"==typeof define&&define.amd?define("jquery-bridget/jquery.bridget",["jquery"],i):i(t.jQuery)})(window),function(t){function e(t){return RegExp("(^|\\s+)"+t+"(\\s+|$)")}function i(t,e){var i=n(t,e)?r:o;i(t,e)}var n,o,r;"classList"in document.documentElement?(n=function(t,e){return t.classList.contains(e)},o=function(t,e){t.classList.add(e)},r=function(t,e){t.classList.remove(e)}):(n=function(t,i){return e(i).test(t.className)},o=function(t,e){n(t,e)||(t.className=t.className+" "+e)},r=function(t,i){t.className=t.className.replace(e(i)," ")});var s={hasClass:n,addClass:o,removeClass:r,toggleClass:i,has:n,add:o,remove:r,toggle:i};"function"==typeof define&&define.amd?define("classie/classie",s):t.classie=s}(window),function(t){function e(t){if(t){if("string"==typeof n[t])return t;t=t.charAt(0).toUpperCase()+t.slice(1);for(var e,o=0,r=i.length;r>o;o++)if(e=i[o]+t,"string"==typeof n[e])return e}}var i="Webkit Moz ms Ms O".split(" "),n=document.documentElement.style;"function"==typeof define&&define.amd?define("get-style-property/get-style-property",[],function(){return e}):"object"==typeof exports?module.exports=e:t.getStyleProperty=e}(window),function(t){function e(t){var e=parseFloat(t),i=-1===t.indexOf("%")&&!isNaN(e);return i&&e}function i(){for(var t={width:0,height:0,innerWidth:0,innerHeight:0,outerWidth:0,outerHeight:0},e=0,i=s.length;i>e;e++){var n=s[e];t[n]=0}return t}function n(t){function n(t){if("string"==typeof t&&(t=document.querySelector(t)),t&&"object"==typeof t&&t.nodeType){var n=r(t);if("none"===n.display)return i();var o={};o.width=t.offsetWidth,o.height=t.offsetHeight;for(var u=o.isBorderBox=!(!p||!n[p]||"border-box"!==n[p]),c=0,f=s.length;f>c;c++){var d=s[c],l=n[d];l=a(t,l);var y=parseFloat(l);o[d]=isNaN(y)?0:y}var g=o.paddingLeft+o.paddingRight,m=o.paddingTop+o.paddingBottom,v=o.marginLeft+o.marginRight,x=o.marginTop+o.marginBottom,b=o.borderLeftWidth+o.borderRightWidth,w=o.borderTopWidth+o.borderBottomWidth,_=u&&h,E=e(n.width);E!==!1&&(o.width=E+(_?0:g+b));var L=e(n.height);return L!==!1&&(o.height=L+(_?0:m+w)),o.innerWidth=o.width-(g+b),o.innerHeight=o.height-(m+w),o.outerWidth=o.width+v,o.outerHeight=o.height+x,o}}function a(t,e){if(o||-1===e.indexOf("%"))return e;var i=t.style,n=i.left,r=t.runtimeStyle,s=r&&r.left;return s&&(r.left=t.currentStyle.left),i.left=e,e=i.pixelLeft,i.left=n,s&&(r.left=s),e}var h,p=t("boxSizing");return function(){if(p){var t=document.createElement("div");t.style.width="200px",t.style.padding="1px 2px 3px 4px",t.style.borderStyle="solid",t.style.borderWidth="1px 2px 3px 4px",t.style[p]="border-box";var i=document.body||document.documentElement;i.appendChild(t);var n=r(t);h=200===e(n.width),i.removeChild(t)}}(),n}var o=t.getComputedStyle,r=o?function(t){return o(t,null)}:function(t){return t.currentStyle},s=["paddingLeft","paddingRight","paddingTop","paddingBottom","marginLeft","marginRight","marginTop","marginBottom","borderLeftWidth","borderRightWidth","borderTopWidth","borderBottomWidth"];"function"==typeof define&&define.amd?define("get-size/get-size",["get-style-property/get-style-property"],n):"object"==typeof exports?module.exports=n(require("get-style-property")):t.getSize=n(t.getStyleProperty)}(window),function(t){function e(e){var i=t.event;return i.target=i.target||i.srcElement||e,i}var i=document.documentElement,n=function(){};i.addEventListener?n=function(t,e,i){t.addEventListener(e,i,!1)}:i.attachEvent&&(n=function(t,i,n){t[i+n]=n.handleEvent?function(){var i=e(t);n.handleEvent.call(n,i)}:function(){var i=e(t);n.call(t,i)},t.attachEvent("on"+i,t[i+n])});var o=function(){};i.removeEventListener?o=function(t,e,i){t.removeEventListener(e,i,!1)}:i.detachEvent&&(o=function(t,e,i){t.detachEvent("on"+e,t[e+i]);try{delete t[e+i]}catch(n){t[e+i]=void 0}});var r={bind:n,unbind:o};"function"==typeof define&&define.amd?define("eventie/eventie",r):"object"==typeof exports?module.exports=r:t.eventie=r}(this),function(t){function e(t){"function"==typeof t&&(e.isReady?t():r.push(t))}function i(t){var i="readystatechange"===t.type&&"complete"!==o.readyState;if(!e.isReady&&!i){e.isReady=!0;for(var n=0,s=r.length;s>n;n++){var a=r[n];a()}}}function n(n){return n.bind(o,"DOMContentLoaded",i),n.bind(o,"readystatechange",i),n.bind(t,"load",i),e}var o=t.document,r=[];e.isReady=!1,"function"==typeof define&&define.amd?(e.isReady="function"==typeof requirejs,define("doc-ready/doc-ready",["eventie/eventie"],n)):t.docReady=n(t.eventie)}(this),function(){function t(){}function e(t,e){for(var i=t.length;i--;)if(t[i].listener===e)return i;return-1}function i(t){return function(){return this[t].apply(this,arguments)}}var n=t.prototype,o=this,r=o.EventEmitter;n.getListeners=function(t){var e,i,n=this._getEvents();if(t instanceof RegExp){e={};for(i in n)n.hasOwnProperty(i)&&t.test(i)&&(e[i]=n[i])}else e=n[t]||(n[t]=[]);return e},n.flattenListeners=function(t){var e,i=[];for(e=0;t.length>e;e+=1)i.push(t[e].listener);return i},n.getListenersAsObject=function(t){var e,i=this.getListeners(t);return i instanceof Array&&(e={},e[t]=i),e||i},n.addListener=function(t,i){var n,o=this.getListenersAsObject(t),r="object"==typeof i;for(n in o)o.hasOwnProperty(n)&&-1===e(o[n],i)&&o[n].push(r?i:{listener:i,once:!1});return this},n.on=i("addListener"),n.addOnceListener=function(t,e){return this.addListener(t,{listener:e,once:!0})},n.once=i("addOnceListener"),n.defineEvent=function(t){return this.getListeners(t),this},n.defineEvents=function(t){for(var e=0;t.length>e;e+=1)this.defineEvent(t[e]);return this},n.removeListener=function(t,i){var n,o,r=this.getListenersAsObject(t);for(o in r)r.hasOwnProperty(o)&&(n=e(r[o],i),-1!==n&&r[o].splice(n,1));return this},n.off=i("removeListener"),n.addListeners=function(t,e){return this.manipulateListeners(!1,t,e)},n.removeListeners=function(t,e){return this.manipulateListeners(!0,t,e)},n.manipulateListeners=function(t,e,i){var n,o,r=t?this.removeListener:this.addListener,s=t?this.removeListeners:this.addListeners;if("object"!=typeof e||e instanceof RegExp)for(n=i.length;n--;)r.call(this,e,i[n]);else for(n in e)e.hasOwnProperty(n)&&(o=e[n])&&("function"==typeof o?r.call(this,n,o):s.call(this,n,o));return this},n.removeEvent=function(t){var e,i=typeof t,n=this._getEvents();if("string"===i)delete n[t];else if(t instanceof RegExp)for(e in n)n.hasOwnProperty(e)&&t.test(e)&&delete n[e];else delete this._events;return this},n.removeAllListeners=i("removeEvent"),n.emitEvent=function(t,e){var i,n,o,r,s=this.getListenersAsObject(t);for(o in s)if(s.hasOwnProperty(o))for(n=s[o].length;n--;)i=s[o][n],i.once===!0&&this.removeListener(t,i.listener),r=i.listener.apply(this,e||[]),r===this._getOnceReturnValue()&&this.removeListener(t,i.listener);return this},n.trigger=i("emitEvent"),n.emit=function(t){var e=Array.prototype.slice.call(arguments,1);return this.emitEvent(t,e)},n.setOnceReturnValue=function(t){return this._onceReturnValue=t,this},n._getOnceReturnValue=function(){return this.hasOwnProperty("_onceReturnValue")?this._onceReturnValue:!0},n._getEvents=function(){return this._events||(this._events={})},t.noConflict=function(){return o.EventEmitter=r,t},"function"==typeof define&&define.amd?define("eventEmitter/EventEmitter",[],function(){return t}):"object"==typeof module&&module.exports?module.exports=t:this.EventEmitter=t}.call(this),function(t,e){function i(t,e){return t[a](e)}function n(t){if(!t.parentNode){var e=document.createDocumentFragment();e.appendChild(t)}}function o(t,e){n(t);for(var i=t.parentNode.querySelectorAll(e),o=0,r=i.length;r>o;o++)if(i[o]===t)return!0;return!1}function r(t,e){return n(t),i(t,e)}var s,a=function(){if(e.matchesSelector)return"matchesSelector";for(var t=["webkit","moz","ms","o"],i=0,n=t.length;n>i;i++){var o=t[i],r=o+"MatchesSelector";if(e[r])return r}}();if(a){var h=document.createElement("div"),p=i(h,"div");s=p?i:r}else s=o;"function"==typeof define&&define.amd?define("matches-selector/matches-selector",[],function(){return s}):window.matchesSelector=s}(this,Element.prototype),function(t){function e(t,e){for(var i in e)t[i]=e[i];return t}function i(t){for(var e in t)return!1;return e=null,!0}function n(t){return t.replace(/([A-Z])/g,function(t){return"-"+t.toLowerCase()})}function o(t,o,r){function a(t,e){t&&(this.element=t,this.layout=e,this.position={x:0,y:0},this._create())}var h=r("transition"),p=r("transform"),u=h&&p,c=!!r("perspective"),f={WebkitTransition:"webkitTransitionEnd",MozTransition:"transitionend",OTransition:"otransitionend",transition:"transitionend"}[h],d=["transform","transition","transitionDuration","transitionProperty"],l=function(){for(var t={},e=0,i=d.length;i>e;e++){var n=d[e],o=r(n);o&&o!==n&&(t[n]=o)}return t}();e(a.prototype,t.prototype),a.prototype._create=function(){this._transn={ingProperties:{},clean:{},onEnd:{}},this.css({position:"absolute"})},a.prototype.handleEvent=function(t){var e="on"+t.type;this[e]&&this[e](t)},a.prototype.getSize=function(){this.size=o(this.element)},a.prototype.css=function(t){var e=this.element.style;for(var i in t){var n=l[i]||i;e[n]=t[i]}},a.prototype.getPosition=function(){var t=s(this.element),e=this.layout.options,i=e.isOriginLeft,n=e.isOriginTop,o=parseInt(t[i?"left":"right"],10),r=parseInt(t[n?"top":"bottom"],10);o=isNaN(o)?0:o,r=isNaN(r)?0:r;var a=this.layout.size;o-=i?a.paddingLeft:a.paddingRight,r-=n?a.paddingTop:a.paddingBottom,this.position.x=o,this.position.y=r},a.prototype.layoutPosition=function(){var t=this.layout.size,e=this.layout.options,i={};e.isOriginLeft?(i.left=this.position.x+t.paddingLeft+"px",i.right=""):(i.right=this.position.x+t.paddingRight+"px",i.left=""),e.isOriginTop?(i.top=this.position.y+t.paddingTop+"px",i.bottom=""):(i.bottom=this.position.y+t.paddingBottom+"px",i.top=""),this.css(i),this.emitEvent("layout",[this])};var y=c?function(t,e){return"translate3d("+t+"px, "+e+"px, 0)"}:function(t,e){return"translate("+t+"px, "+e+"px)"};a.prototype._transitionTo=function(t,e){this.getPosition();var i=this.position.x,n=this.position.y,o=parseInt(t,10),r=parseInt(e,10),s=o===this.position.x&&r===this.position.y;if(this.setPosition(t,e),s&&!this.isTransitioning)return this.layoutPosition(),void 0;var a=t-i,h=e-n,p={},u=this.layout.options;a=u.isOriginLeft?a:-a,h=u.isOriginTop?h:-h,p.transform=y(a,h),this.transition({to:p,onTransitionEnd:{transform:this.layoutPosition},isCleaning:!0})},a.prototype.goTo=function(t,e){this.setPosition(t,e),this.layoutPosition()},a.prototype.moveTo=u?a.prototype._transitionTo:a.prototype.goTo,a.prototype.setPosition=function(t,e){this.position.x=parseInt(t,10),this.position.y=parseInt(e,10)},a.prototype._nonTransition=function(t){this.css(t.to),t.isCleaning&&this._removeStyles(t.to);for(var e in t.onTransitionEnd)t.onTransitionEnd[e].call(this)},a.prototype._transition=function(t){if(!parseFloat(this.layout.options.transitionDuration))return this._nonTransition(t),void 0;var e=this._transn;for(var i in t.onTransitionEnd)e.onEnd[i]=t.onTransitionEnd[i];for(i in t.to)e.ingProperties[i]=!0,t.isCleaning&&(e.clean[i]=!0);if(t.from){this.css(t.from);var n=this.element.offsetHeight;n=null}this.enableTransition(t.to),this.css(t.to),this.isTransitioning=!0};var g=p&&n(p)+",opacity";a.prototype.enableTransition=function(){this.isTransitioning||(this.css({transitionProperty:g,transitionDuration:this.layout.options.transitionDuration}),this.element.addEventListener(f,this,!1))},a.prototype.transition=a.prototype[h?"_transition":"_nonTransition"],a.prototype.onwebkitTransitionEnd=function(t){this.ontransitionend(t)},a.prototype.onotransitionend=function(t){this.ontransitionend(t)};var m={"-webkit-transform":"transform","-moz-transform":"transform","-o-transform":"transform"};a.prototype.ontransitionend=function(t){if(t.target===this.element){var e=this._transn,n=m[t.propertyName]||t.propertyName;if(delete e.ingProperties[n],i(e.ingProperties)&&this.disableTransition(),n in e.clean&&(this.element.style[t.propertyName]="",delete e.clean[n]),n in e.onEnd){var o=e.onEnd[n];o.call(this),delete e.onEnd[n]}this.emitEvent("transitionEnd",[this])}},a.prototype.disableTransition=function(){this.removeTransitionStyles(),this.element.removeEventListener(f,this,!1),this.isTransitioning=!1},a.prototype._removeStyles=function(t){var e={};for(var i in t)e[i]="";this.css(e)};var v={transitionProperty:"",transitionDuration:""};return a.prototype.removeTransitionStyles=function(){this.css(v)},a.prototype.removeElem=function(){this.element.parentNode.removeChild(this.element),this.emitEvent("remove",[this])},a.prototype.remove=function(){if(!h||!parseFloat(this.layout.options.transitionDuration))return this.removeElem(),void 0;var t=this;this.on("transitionEnd",function(){return t.removeElem(),!0}),this.hide()},a.prototype.reveal=function(){delete this.isHidden,this.css({display:""});var t=this.layout.options;this.transition({from:t.hiddenStyle,to:t.visibleStyle,isCleaning:!0})},a.prototype.hide=function(){this.isHidden=!0,this.css({display:""});var t=this.layout.options;this.transition({from:t.visibleStyle,to:t.hiddenStyle,isCleaning:!0,onTransitionEnd:{opacity:function(){this.isHidden&&this.css({display:"none"})}}})},a.prototype.destroy=function(){this.css({position:"",left:"",right:"",top:"",bottom:"",transition:"",transform:""})},a}var r=document.defaultView,s=r&&r.getComputedStyle?function(t){return r.getComputedStyle(t,null)}:function(t){return t.currentStyle};"function"==typeof define&&define.amd?define("outlayer/item",["eventEmitter/EventEmitter","get-size/get-size","get-style-property/get-style-property"],o):(t.Outlayer={},t.Outlayer.Item=o(t.EventEmitter,t.getSize,t.getStyleProperty))}(window),function(t){function e(t,e){for(var i in e)t[i]=e[i];return t}function i(t){return"[object Array]"===c.call(t)}function n(t){var e=[];if(i(t))e=t;else if(t&&"number"==typeof t.length)for(var n=0,o=t.length;o>n;n++)e.push(t[n]);else e.push(t);return e}function o(t,e){var i=d(e,t);-1!==i&&e.splice(i,1)}function r(t){return t.replace(/(.)([A-Z])/g,function(t,e,i){return e+"-"+i}).toLowerCase()}function s(i,s,c,d,l,y){function g(t,i){if("string"==typeof t&&(t=a.querySelector(t)),!t||!f(t))return h&&h.error("Bad "+this.constructor.namespace+" element: "+t),void 0;this.element=t,this.options=e({},this.options),this.option(i);var n=++v;this.element.outlayerGUID=n,x[n]=this,this._create(),this.options.isInitLayout&&this.layout()}function m(t,i){t.prototype[i]=e({},g.prototype[i])}var v=0,x={};return g.namespace="outlayer",g.Item=y,g.prototype.options={containerStyle:{position:"relative"},isInitLayout:!0,isOriginLeft:!0,isOriginTop:!0,isResizeBound:!0,transitionDuration:"0.4s",hiddenStyle:{opacity:0,transform:"scale(0.001)"},visibleStyle:{opacity:1,transform:"scale(1)"}},e(g.prototype,c.prototype),g.prototype.option=function(t){e(this.options,t)},g.prototype._create=function(){this.reloadItems(),this.stamps=[],this.stamp(this.options.stamp),e(this.element.style,this.options.containerStyle),this.options.isResizeBound&&this.bindResize()},g.prototype.reloadItems=function(){this.items=this._itemize(this.element.children)},g.prototype._itemize=function(t){for(var e=this._filterFindItemElements(t),i=this.constructor.Item,n=[],o=0,r=e.length;r>o;o++){var s=e[o],a=new i(s,this);n.push(a)}return n},g.prototype._filterFindItemElements=function(t){t=n(t);for(var e=this.options.itemSelector,i=[],o=0,r=t.length;r>o;o++){var s=t[o];if(f(s))if(e){l(s,e)&&i.push(s);for(var a=s.querySelectorAll(e),h=0,p=a.length;p>h;h++)i.push(a[h])}else i.push(s)}return i},g.prototype.getItemElements=function(){for(var t=[],e=0,i=this.items.length;i>e;e++)t.push(this.items[e].element);return t},g.prototype.layout=function(){this._resetLayout(),this._manageStamps();var t=void 0!==this.options.isLayoutInstant?this.options.isLayoutInstant:!this._isLayoutInited;this.layoutItems(this.items,t),this._isLayoutInited=!0},g.prototype._init=g.prototype.layout,g.prototype._resetLayout=function(){this.getSize()},g.prototype.getSize=function(){this.size=d(this.element)},g.prototype._getMeasurement=function(t,e){var i,n=this.options[t];n?("string"==typeof n?i=this.element.querySelector(n):f(n)&&(i=n),this[t]=i?d(i)[e]:n):this[t]=0},g.prototype.layoutItems=function(t,e){t=this._getItemsForLayout(t),this._layoutItems(t,e),this._postLayout()},g.prototype._getItemsForLayout=function(t){for(var e=[],i=0,n=t.length;n>i;i++){var o=t[i];o.isIgnored||e.push(o)}return e},g.prototype._layoutItems=function(t,e){function i(){n.emitEvent("layoutComplete",[n,t])}var n=this;if(!t||!t.length)return i(),void 0;this._itemsOn(t,"layout",i);for(var o=[],r=0,s=t.length;s>r;r++){var a=t[r],h=this._getItemLayoutPosition(a);h.item=a,h.isInstant=e||a.isLayoutInstant,o.push(h)}this._processLayoutQueue(o)},g.prototype._getItemLayoutPosition=function(){return{x:0,y:0}},g.prototype._processLayoutQueue=function(t){for(var e=0,i=t.length;i>e;e++){var n=t[e];this._positionItem(n.item,n.x,n.y,n.isInstant)}},g.prototype._positionItem=function(t,e,i,n){n?t.goTo(e,i):t.moveTo(e,i)},g.prototype._postLayout=function(){var t=this._getContainerSize();t&&(this._setContainerMeasure(t.width,!0),this._setContainerMeasure(t.height,!1))},g.prototype._getContainerSize=u,g.prototype._setContainerMeasure=function(t,e){if(void 0!==t){var i=this.size;i.isBorderBox&&(t+=e?i.paddingLeft+i.paddingRight+i.borderLeftWidth+i.borderRightWidth:i.paddingBottom+i.paddingTop+i.borderTopWidth+i.borderBottomWidth),t=Math.max(t,0),this.element.style[e?"width":"height"]=t+"px"}},g.prototype._itemsOn=function(t,e,i){function n(){return o++,o===r&&i.call(s),!0}for(var o=0,r=t.length,s=this,a=0,h=t.length;h>a;a++){var p=t[a];p.on(e,n)}},g.prototype.ignore=function(t){var e=this.getItem(t);e&&(e.isIgnored=!0)},g.prototype.unignore=function(t){var e=this.getItem(t);e&&delete e.isIgnored},g.prototype.stamp=function(t){if(t=this._find(t)){this.stamps=this.stamps.concat(t);for(var e=0,i=t.length;i>e;e++){var n=t[e];this.ignore(n)}}},g.prototype.unstamp=function(t){if(t=this._find(t))for(var e=0,i=t.length;i>e;e++){var n=t[e];o(n,this.stamps),this.unignore(n)}},g.prototype._find=function(t){return t?("string"==typeof t&&(t=this.element.querySelectorAll(t)),t=n(t)):void 0},g.prototype._manageStamps=function(){if(this.stamps&&this.stamps.length){this._getBoundingRect();for(var t=0,e=this.stamps.length;e>t;t++){var i=this.stamps[t];this._manageStamp(i)}}},g.prototype._getBoundingRect=function(){var t=this.element.getBoundingClientRect(),e=this.size;this._boundingRect={left:t.left+e.paddingLeft+e.borderLeftWidth,top:t.top+e.paddingTop+e.borderTopWidth,right:t.right-(e.paddingRight+e.borderRightWidth),bottom:t.bottom-(e.paddingBottom+e.borderBottomWidth)}},g.prototype._manageStamp=u,g.prototype._getElementOffset=function(t){var e=t.getBoundingClientRect(),i=this._boundingRect,n=d(t),o={left:e.left-i.left-n.marginLeft,top:e.top-i.top-n.marginTop,right:i.right-e.right-n.marginRight,bottom:i.bottom-e.bottom-n.marginBottom};return o},g.prototype.handleEvent=function(t){var e="on"+t.type;this[e]&&this[e](t)},g.prototype.bindResize=function(){this.isResizeBound||(i.bind(t,"resize",this),this.isResizeBound=!0)},g.prototype.unbindResize=function(){i.unbind(t,"resize",this),this.isResizeBound=!1},g.prototype.onresize=function(){function t(){e.resize(),delete e.resizeTimeout}this.resizeTimeout&&clearTimeout(this.resizeTimeout);var e=this;this.resizeTimeout=setTimeout(t,100)},g.prototype.resize=function(){var t=d(this.element),e=this.size&&t;e&&t.innerWidth===this.size.innerWidth||this.layout()},g.prototype.addItems=function(t){var e=this._itemize(t);return e.length&&(this.items=this.items.concat(e)),e},g.prototype.appended=function(t){var e=this.addItems(t);e.length&&(this.layoutItems(e,!0),this.reveal(e))},g.prototype.prepended=function(t){var e=this._itemize(t);if(e.length){var i=this.items.slice(0);this.items=e.concat(i),this._resetLayout(),this._manageStamps(),this.layoutItems(e,!0),this.reveal(e),this.layoutItems(i)}},g.prototype.reveal=function(t){var e=t&&t.length;if(e)for(var i=0;e>i;i++){var n=t[i];n.reveal()}},g.prototype.hide=function(t){var e=t&&t.length;if(e)for(var i=0;e>i;i++){var n=t[i];n.hide()}},g.prototype.getItem=function(t){for(var e=0,i=this.items.length;i>e;e++){var n=this.items[e];if(n.element===t)return n}},g.prototype.getItems=function(t){if(t&&t.length){for(var e=[],i=0,n=t.length;n>i;i++){var o=t[i],r=this.getItem(o);r&&e.push(r)}return e}},g.prototype.remove=function(t){t=n(t);var e=this.getItems(t);if(e&&e.length){this._itemsOn(e,"remove",function(){this.emitEvent("removeComplete",[this,e])});for(var i=0,r=e.length;r>i;i++){var s=e[i];s.remove(),o(s,this.items)}}},g.prototype.destroy=function(){var t=this.element.style;t.height="",t.position="",t.width="";for(var e=0,i=this.items.length;i>e;e++){var n=this.items[e];n.destroy()}this.unbindResize(),delete this.element.outlayerGUID,p&&p.removeData(this.element,this.constructor.namespace)},g.data=function(t){var e=t&&t.outlayerGUID;return e&&x[e]},g.create=function(t,i){function n(){g.apply(this,arguments)}return Object.create?n.prototype=Object.create(g.prototype):e(n.prototype,g.prototype),n.prototype.constructor=n,m(n,"options"),e(n.prototype.options,i),n.namespace=t,n.data=g.data,n.Item=function(){y.apply(this,arguments)},n.Item.prototype=new y,s(function(){for(var e=r(t),i=a.querySelectorAll(".js-"+e),o="data-"+e+"-options",s=0,u=i.length;u>s;s++){var c,f=i[s],d=f.getAttribute(o);try{c=d&&JSON.parse(d)}catch(l){h&&h.error("Error parsing "+o+" on "+f.nodeName.toLowerCase()+(f.id?"#"+f.id:"")+": "+l);continue}var y=new n(f,c);p&&p.data(f,t,y)}}),p&&p.bridget&&p.bridget(t,n),n},g.Item=y,g}var a=t.document,h=t.console,p=t.jQuery,u=function(){},c=Object.prototype.toString,f="object"==typeof HTMLElement?function(t){return t instanceof HTMLElement}:function(t){return t&&"object"==typeof t&&1===t.nodeType&&"string"==typeof t.nodeName},d=Array.prototype.indexOf?function(t,e){return t.indexOf(e)}:function(t,e){for(var i=0,n=t.length;n>i;i++)if(t[i]===e)return i;return-1};"function"==typeof define&&define.amd?define("outlayer/outlayer",["eventie/eventie","doc-ready/doc-ready","eventEmitter/EventEmitter","get-size/get-size","matches-selector/matches-selector","./item"],s):t.Outlayer=s(t.eventie,t.docReady,t.EventEmitter,t.getSize,t.matchesSelector,t.Outlayer.Item)}(window),function(t){function e(){function t(e){for(var i in t.defaults)this[i]=t.defaults[i];for(i in e)this[i]=e[i]}return i.Rect=t,t.defaults={x:0,y:0,width:0,height:0},t.prototype.contains=function(t){var e=t.width||0,i=t.height||0;return this.x<=t.x&&this.y<=t.y&&this.x+this.width>=t.x+e&&this.y+this.height>=t.y+i},t.prototype.overlaps=function(t){var e=this.x+this.width,i=this.y+this.height,n=t.x+t.width,o=t.y+t.height;return n>this.x&&e>t.x&&o>this.y&&i>t.y},t.prototype.getMaximalFreeRects=function(e){if(!this.overlaps(e))return!1;var i,n=[],o=this.x+this.width,r=this.y+this.height,s=e.x+e.width,a=e.y+e.height;return this.y<e.y&&(i=new t({x:this.x,y:this.y,width:this.width,height:e.y-this.y}),n.push(i)),o>s&&(i=new t({x:s,y:this.y,width:o-s,height:this.height}),n.push(i)),r>a&&(i=new t({x:this.x,y:a,width:this.width,height:r-a}),n.push(i)),this.x<e.x&&(i=new t({x:this.x,y:this.y,width:e.x-this.x,height:this.height}),n.push(i)),n},t.prototype.canFit=function(t){return this.width>=t.width&&this.height>=t.height},t}var i=t.Packery=function(){};"function"==typeof define&&define.amd?define("packery/js/rect",e):(t.Packery=t.Packery||{},t.Packery.Rect=e())}(window),function(t){function e(t){function e(t,e,i){this.width=t||0,this.height=e||0,this.sortDirection=i||"downwardLeftToRight",this.reset()}e.prototype.reset=function(){this.spaces=[],this.newSpaces=[];var e=new t({x:0,y:0,width:this.width,height:this.height});this.spaces.push(e),this.sorter=i[this.sortDirection]||i.downwardLeftToRight},e.prototype.pack=function(t){for(var e=0,i=this.spaces.length;i>e;e++){var n=this.spaces[e];if(n.canFit(t)){this.placeInSpace(t,n);break}}},e.prototype.placeInSpace=function(t,e){t.x=e.x,t.y=e.y,this.placed(t)},e.prototype.placed=function(t){for(var i=[],n=0,o=this.spaces.length;o>n;n++){var r=this.spaces[n],s=r.getMaximalFreeRects(t);s?i.push.apply(i,s):i.push(r)}this.spaces=i,e.mergeRects(this.spaces),this.spaces.sort(this.sorter)},e.mergeRects=function(t){for(var e=0,i=t.length;i>e;e++){var n=t[e];if(n){var o=t.slice(0);o.splice(e,1);for(var r=0,s=0,a=o.length;a>s;s++){var h=o[s],p=e>s?0:1;n.contains(h)&&(t.splice(s+p-r,1),r++)}}}return t};var i={downwardLeftToRight:function(t,e){return t.y-e.y||t.x-e.x},rightwardTopToBottom:function(t,e){return t.x-e.x||t.y-e.y}};return e}if("function"==typeof define&&define.amd)define("packery/js/packer",["./rect"],e);else{var i=t.Packery=t.Packery||{};i.Packer=e(i.Rect)}}(window),function(t){function e(t,e,i){var n=t("transform"),o=function(){e.Item.apply(this,arguments)};o.prototype=new e.Item;var r=o.prototype._create;return o.prototype._create=function(){r.call(this),this.rect=new i,this.placeRect=new i},o.prototype.dragStart=function(){this.getPosition(),this.removeTransitionStyles(),this.isTransitioning&&n&&(this.element.style[n]="none"),this.getSize(),this.isPlacing=!0,this.needsPositioning=!1,this.positionPlaceRect(this.position.x,this.position.y),this.isTransitioning=!1,this.didDrag=!1},o.prototype.dragMove=function(t,e){this.didDrag=!0;var i=this.layout.size;t-=i.paddingLeft,e-=i.paddingTop,this.positionPlaceRect(t,e)},o.prototype.dragStop=function(){this.getPosition();var t=this.position.x!==this.placeRect.x,e=this.position.y!==this.placeRect.y;this.needsPositioning=t||e,this.didDrag=!1},o.prototype.positionPlaceRect=function(t,e,i){this.placeRect.x=this.getPlaceRectCoord(t,!0),this.placeRect.y=this.getPlaceRectCoord(e,!1,i)},o.prototype.getPlaceRectCoord=function(t,e,i){var n=e?"Width":"Height",o=this.size["outer"+n],r=this.layout[e?"columnWidth":"rowHeight"],s=this.layout.size["inner"+n];e||(s=Math.max(s,this.layout.maxY),this.layout.rowHeight||(s-=this.layout.gutter));var a;if(r){r+=this.layout.gutter,s+=e?this.layout.gutter:0,t=Math.round(t/r);var h;h=this.layout.options.isHorizontal?e?"ceil":"floor":e?"floor":"ceil";var p=Math[h](s/r);p-=Math.ceil(o/r),a=p}else a=s-o;return t=i?t:Math.min(t,a),t*=r||1,Math.max(0,t)},o.prototype.copyPlaceRectPosition=function(){this.rect.x=this.placeRect.x,this.rect.y=this.placeRect.y},o}"function"==typeof define&&define.amd?define("packery/js/item",["get-style-property/get-style-property","outlayer/outlayer","./rect"],e):t.Packery.Item=e(t.getStyleProperty,t.Outlayer,t.Packery.Rect)}(window),function(t){function e(t,e,i,n,o,r){function s(t,e){return t.position.y-e.position.y||t.position.x-e.position.x}function a(t,e){return t.position.x-e.position.x||t.position.y-e.position.y}var h=i.create("packery");return h.Item=r,h.prototype._create=function(){i.prototype._create.call(this),this.packer=new o,this.stamp(this.options.stamped);var t=this;this.handleDraggabilly={dragStart:function(e){t.itemDragStart(e.element)},dragMove:function(e){t.itemDragMove(e.element,e.position.x,e.position.y)},dragEnd:function(e){t.itemDragEnd(e.element)}},this.handleUIDraggable={start:function(e){t.itemDragStart(e.currentTarget)},drag:function(e,i){t.itemDragMove(e.currentTarget,i.position.left,i.position.top)},stop:function(e){t.itemDragEnd(e.currentTarget)}}},h.prototype._resetLayout=function(){this.getSize(),this._getMeasurements();var t=this.packer;this.options.isHorizontal?(t.width=Number.POSITIVE_INFINITY,t.height=this.size.innerHeight+this.gutter,t.sortDirection="rightwardTopToBottom"):(t.width=this.size.innerWidth+this.gutter,t.height=Number.POSITIVE_INFINITY,t.sortDirection="downwardLeftToRight"),t.reset(),this.maxY=0,this.maxX=0},h.prototype._getMeasurements=function(){this._getMeasurement("columnWidth","width"),this._getMeasurement("rowHeight","height"),this._getMeasurement("gutter","width")},h.prototype._getItemLayoutPosition=function(t){return this._packItem(t),t.rect},h.prototype._packItem=function(t){this._setRectSize(t.element,t.rect),this.packer.pack(t.rect),this._setMaxXY(t.rect)},h.prototype._setMaxXY=function(t){this.maxX=Math.max(t.x+t.width,this.maxX),this.maxY=Math.max(t.y+t.height,this.maxY)},h.prototype._setRectSize=function(t,i){var n=e(t),o=n.outerWidth,r=n.outerHeight;if(o||r){var s=this.columnWidth+this.gutter,a=this.rowHeight+this.gutter;o=this.columnWidth?Math.ceil(o/s)*s:o+this.gutter,r=this.rowHeight?Math.ceil(r/a)*a:r+this.gutter}i.width=Math.min(o,this.packer.width),i.height=Math.min(r,this.packer.height)},h.prototype._getContainerSize=function(){return this.options.isHorizontal?{width:this.maxX-this.gutter}:{height:this.maxY-this.gutter}},h.prototype._manageStamp=function(t){var e,i=this.getItem(t);if(i&&i.isPlacing)e=i.placeRect;else{var o=this._getElementOffset(t);e=new n({x:this.options.isOriginLeft?o.left:o.right,y:this.options.isOriginTop?o.top:o.bottom})}this._setRectSize(t,e),this.packer.placed(e),this._setMaxXY(e)},h.prototype.sortItemsByPosition=function(){var t=this.options.isHorizontal?a:s;this.items.sort(t)},h.prototype.fit=function(t,e,i){var n=this.getItem(t);n&&(this._getMeasurements(),this.stamp(n.element),n.getSize(),n.isPlacing=!0,e=void 0===e?n.rect.x:e,i=void 0===i?n.rect.y:i,n.positionPlaceRect(e,i,!0),this._bindFitEvents(n),n.moveTo(n.placeRect.x,n.placeRect.y),this.layout(),this.unstamp(n.element),this.sortItemsByPosition(),n.isPlacing=!1,n.copyPlaceRectPosition())},h.prototype._bindFitEvents=function(t){function e(){n++,2===n&&i.emitEvent("fitComplete",[i,t])}var i=this,n=0;t.on("layout",function(){return e(),!0}),this.on("layoutComplete",function(){return e(),!0})},h.prototype.resize=function(){var t=e(this.element),i=this.size&&t,n=this.options.isHorizontal?"innerHeight":"innerWidth";i&&t[n]===this.size[n]||this.layout()},h.prototype.itemDragStart=function(t){this.stamp(t);var e=this.getItem(t);e&&e.dragStart()},h.prototype.itemDragMove=function(t,e,i){function n(){r.layout(),delete r.dragTimeout}var o=this.getItem(t);o&&o.dragMove(e,i);var r=this;this.clearDragTimeout(),this.dragTimeout=setTimeout(n,40)},h.prototype.clearDragTimeout=function(){this.dragTimeout&&clearTimeout(this.dragTimeout)},h.prototype.itemDragEnd=function(e){var i,n=this.getItem(e);if(n&&(i=n.didDrag,n.dragStop()),!n||!i&&!n.needsPositioning)return this.unstamp(e),void 0;t.add(n.element,"is-positioning-post-drag");var o=this._getDragEndLayoutComplete(e,n);n.needsPositioning?(n.on("layout",o),n.moveTo(n.placeRect.x,n.placeRect.y)):n&&n.copyPlaceRectPosition(),this.clearDragTimeout(),this.on("layoutComplete",o),this.layout()},h.prototype._getDragEndLayoutComplete=function(e,i){var n=i&&i.needsPositioning,o=0,r=n?2:1,s=this;return function(){return o++,o!==r?!0:(i&&(t.remove(i.element,"is-positioning-post-drag"),i.isPlacing=!1,i.copyPlaceRectPosition()),s.unstamp(e),s.sortItemsByPosition(),n&&s.emitEvent("dragItemPositioned",[s,i]),!0)}},h.prototype.bindDraggabillyEvents=function(t){t.on("dragStart",this.handleDraggabilly.dragStart),t.on("dragMove",this.handleDraggabilly.dragMove),t.on("dragEnd",this.handleDraggabilly.dragEnd)},h.prototype.bindUIDraggableEvents=function(t){t.on("dragstart",this.handleUIDraggable.start).on("drag",this.handleUIDraggable.drag).on("dragstop",this.handleUIDraggable.stop)
-},h.Rect=n,h.Packer=o,h}"function"==typeof define&&define.amd?define("packery/js/packery",["classie/classie","get-size/get-size","outlayer/outlayer","./rect","./packer","./item"],e):t.Packery=e(t.classie,t.getSize,t.Outlayer,t.Packery.Rect,t.Packery.Packer,t.Packery.Item)}(window);
\ No newline at end of file
+},h.Rect=n,h.Packer=o,h}"function"==typeof define&&define.amd?define(["classie/classie","get-size/get-size","outlayer/outlayer","packery/js/rect","packery/js/packer","packery/js/item"],e):t.Packery=e(t.classie,t.getSize,t.Outlayer,t.Packery.Rect,t.Packery.Packer,t.Packery.Item)}(window);
\ No newline at end of file
diff --git a/js/packery.js b/js/packery.js
index 37cfe92..4b0d786 100644
--- a/js/packery.js
+++ b/js/packery.js
@@ -1,5 +1,5 @@
 /*!
- * Packery v1.2.2
+ * Packery v1.2.3
  * bin-packing layout library
  * http://packery.metafizzy.co
  *
diff --git a/package.json b/package.json
index 054a83a..caa7b86 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "packery",
-  "version": "1.2.2",
+  "version": "1.2.3",
   "description": "bin-packing layout library",
   "main": "js/packery.js",
   "devDependencies": {