/**handles:jetpack-lazy-images-polyfill-intersectionobserver**/
!function(){"use strict";var d,o,g,m;function s(t){try{return t.defaultView&amp;&amp;t.defaultView.frameElement||null}catch(t){return null}}function u(t){this.time=t.time,this.target=t.target,this.rootBounds=n(t.rootBounds),this.boundingClientRect=n(t.boundingClientRect),this.intersectionRect=n(t.intersectionRect||{top:0,bottom:0,left:0,right:0,width:0,height:0}),this.isIntersecting=!!t.intersectionRect;var e=this.boundingClientRect,t=e.width*e.height,e=this.intersectionRect,e=e.width*e.height;this.intersectionRatio=t?Number((e/t).toFixed(4)):this.isIntersecting?1:0}function t(t,e){var o,n,i,e=e||{};if("function"!=typeof t)throw new Error("callback must be a function");if(e.root&amp;&amp;1!=e.root.nodeType&amp;&amp;9!=e.root.nodeType)throw new Error("root must be a Document or Element");this._checkForIntersections=(o=this._checkForIntersections.bind(this),n=this.THROTTLE_TIMEOUT,i=null,function(){i=i||setTimeout(function(){o(),i=null},n)}),this._callback=t,this._observationTargets=[],this._queuedEntries=[],this._rootMarginValues=this._parseRootMargin(e.rootMargin),this.thresholds=this._initThresholds(e.threshold),this.root=e.root||null,this.rootMargin=this._rootMarginValues.map(function(t){return t.value+t.unit}).join(" "),this._monitoringDocuments=[],this._monitoringUnsubscribes=[]}function r(t,e,o,n){"function"==typeof t.addEventListener?t.addEventListener(e,o,n||!1):"function"==typeof t.attachEvent&amp;&amp;t.attachEvent("on"+e,o)}function h(t,e,o,n){"function"==typeof t.removeEventListener?t.removeEventListener(e,o,n||!1):"function"==typeof t.detatchEvent&amp;&amp;t.detatchEvent("on"+e,o)}function _(t){var e;try{e=t.getBoundingClientRect()}catch(t){}return e?e=!e.width||!e.height?{top:e.top,right:e.right,bottom:e.bottom,left:e.left,width:e.right-e.left,height:e.bottom-e.top}:e:{top:0,bottom:0,left:0,right:0,width:0,height:0}}function n(t){return!t||"x"in t?t:{top:t.top,y:t.top,bottom:t.bottom,left:t.left,x:t.left,right:t.right,width:t.width,height:t.height}}function b(t,e){var o=e.top-t.top,t=e.left-t.left;return{top:o,left:t,height:e.height,width:e.width,bottom:o+e.height,right:t+e.width}}function i(t,e){for(var o=e;o;){if(o==t)return!0;o=w(o)}return!1}function w(t){var e=t.parentNode;return 9==t.nodeType&amp;&amp;t!=d?s(t):(e=e&amp;&amp;e.assignedSlot?e.assignedSlot.parentNode:e)&amp;&amp;11==e.nodeType&amp;&amp;e.host?e.host:e}function c(t){return t&amp;&amp;9===t.nodeType}"object"==typeof window&amp;&amp;("IntersectionObserver"in window&amp;&amp;"IntersectionObserverEntry"in window&amp;&amp;"intersectionRatio"in window.IntersectionObserverEntry.prototype?"isIntersecting"in window.IntersectionObserverEntry.prototype||Object.defineProperty(window.IntersectionObserverEntry.prototype,"isIntersecting",{get:function(){return 0&lt;this.intersectionRatio}}):(d=function(t){for(var e=window.document,o=s(e);o;)o=s(e=o.ownerDocument);return e}(),o=[],m=g=null,t.prototype.THROTTLE_TIMEOUT=100,t.prototype.POLL_INTERVAL=null,t.prototype.USE_MUTATION_OBSERVER=!0,t._setupCrossOriginUpdater=function(){return g=g||function(t,e){m=t&amp;&amp;e?b(t,e):{top:0,bottom:0,left:0,right:0,width:0,height:0},o.forEach(function(t){t._checkForIntersections()})}},t._resetCrossOriginUpdater=function(){m=g=null},t.prototype.observe=function(e){if(!this._observationTargets.some(function(t){return t.element==e})){if(!e||1!=e.nodeType)throw new Error(&quot;target must be an Element&quot;);this._registerInstance(),this._observationTargets.push({element:e,entry:null}),this._monitorIntersections(e.ownerDocument),this._checkForIntersections()}},t.prototype.unobserve=function(e){this._observationTargets=this._observationTargets.filter(function(t){return t.element!=e}),this._unmonitorIntersections(e.ownerDocument),0==this._observationTargets.length&amp;&amp;this._unregisterInstance()},t.prototype.disconnect=function(){this._observationTargets=[],this._unmonitorAllIntersections(),this._unregisterInstance()},t.prototype.takeRecords=function(){var t=this._queuedEntries.slice();return this._queuedEntries=[],t},t.prototype._initThresholds=function(t){var t=t||[0];return(t=!Array.isArray(t)?[t]:t).sort().filter(function(t,e,o){if(&quot;number&quot;!=typeof t||isNaN(t)||t&lt;0||1&lt;t)throw new Error(&quot;threshold must be a number between 0 and 1 inclusively&quot;);return t!==o[e-1]})},t.prototype._parseRootMargin=function(t){var t=(t||&quot;0px&quot;).split(/\s+/).map(function(t){var t=/^(-?\d*\.?\d+)(px|%)$/.exec(t);if(!t)throw new Error(&quot;rootMargin must be specified in pixels or percent&quot;);return{value:parseFloat(t[1]),unit:t[2]}});return t[1]=t[1]||t[0],t[2]=t[2]||t[0],t[3]=t[3]||t[1],t},t.prototype._monitorIntersections=function(e){var t=e.defaultView,o,n,i,t,t;t&amp;&amp;-1==this._monitoringDocuments.indexOf(e)&amp;&amp;(o=this._checkForIntersections,i=n=null,this.POLL_INTERVAL?n=t.setInterval(o,this.POLL_INTERVAL):(r(t,&quot;resize&quot;,o,!0),r(e,&quot;scroll&quot;,o,!0),this.USE_MUTATION_OBSERVER&amp;&amp;&quot;MutationObserver&quot;in t&amp;&amp;(i=new t.MutationObserver(o)).observe(e,{attributes:!0,childList:!0,characterData:!0,subtree:!0})),this._monitoringDocuments.push(e),this._monitoringUnsubscribes.push(function(){var t=e.defaultView;t&amp;&amp;(n&amp;&amp;t.clearInterval(n),h(t,&quot;resize&quot;,o,!0)),h(e,&quot;scroll&quot;,o,!0),i&amp;&amp;i.disconnect()}),t=this.root&amp;&amp;(this.root.ownerDocument||this.root)||d,e==t||(t=s(e))&amp;&amp;this._monitorIntersections(t.ownerDocument))},t.prototype._unmonitorIntersections=function(n){var t=this._monitoringDocuments.indexOf(n),i,e,o,r;-1!=t&amp;&amp;(i=this.root&amp;&amp;(this.root.ownerDocument||this.root)||d,this._observationTargets.some(function(t){var e=t.element.ownerDocument;if(e==n)return!0;for(;e&amp;&amp;e!=i;){var o=s(e);if((e=o&amp;&amp;o.ownerDocument)==n)return!0}return!1})||(o=this._monitoringUnsubscribes[t],this._monitoringDocuments.splice(t,1),this._monitoringUnsubscribes.splice(t,1),o(),n!=i&amp;&amp;(r=s(n))&amp;&amp;this._unmonitorIntersections(r.ownerDocument)))},t.prototype._unmonitorAllIntersections=function(){var t=this._monitoringUnsubscribes.slice(0);this._monitoringDocuments.length=0;for(var e=this._monitoringUnsubscribes.length=0;e&lt;t.length;e++)t[e]()},t.prototype._checkForIntersections=function(){var h,c;!this.root&amp;&amp;g&amp;&amp;!m||(h=this._rootIsInDom(),c=h?this._getRootRect():{top:0,bottom:0,left:0,right:0,width:0,height:0},this._observationTargets.forEach(function(t){var e=t.element,o=_(e),n=this._rootContainsTarget(e),i=t.entry,r=h&amp;&amp;n&amp;&amp;this._computeTargetAndRootIntersection(e,o,c),s=null;this._rootContainsTarget(e)?g&amp;&amp;!this.root||(s=c):s={top:0,bottom:0,left:0,right:0,width:0,height:0};var r=t.entry=new u({time:window.performance&amp;&amp;performance.now&amp;&amp;performance.now(),target:e,boundingClientRect:o,rootBounds:s,intersectionRect:r});i?h&amp;&amp;n?this._hasCrossedThreshold(i,r)&amp;&amp;this._queuedEntries.push(r):i&amp;&amp;i.isIntersecting&amp;&amp;this._queuedEntries.push(r):this._queuedEntries.push(r)},this),this._queuedEntries.length&amp;&amp;this._callback(this.takeRecords(),this))},t.prototype._computeTargetAndRootIntersection=function(t,e,o){if(&quot;none&quot;!=window.getComputedStyle(t).display){for(var n,i,r,s,h,c,u,a,l=e,p=w(t),f=!1;!f&amp;&amp;p;){var a=null,u=1==p.nodeType?window.getComputedStyle(p):{},r,s,h,c;if(&quot;none&quot;==u.display)return null;if(p==this.root||9==p.nodeType?(f=!0,p==this.root||p==d?g&amp;&amp;!this.root?!m||0==m.width&amp;&amp;0==m.height?l=a=p=null:a=m:a=o:(s=(r=w(p))&amp;&amp;_(r),h=r&amp;&amp;this._computeTargetAndRootIntersection(r,s,o),s&amp;&amp;h?(p=r,a=b(s,h)):l=p=null)):p!=(c=p.ownerDocument).body&amp;&amp;p!=c.documentElement&amp;&amp;&quot;visible&quot;!=u.overflow&amp;&amp;(a=_(p)),a&amp;&amp;(n=a,i=l,a=u=c=h=s=r=void 0,r=Math.max(n.top,i.top),s=Math.min(n.bottom,i.bottom),h=Math.max(n.left,i.left),a=s-r,l=0&lt;=(u=(c=Math.min(n.right,i.right))-h)&amp;&amp;0&lt;=a?{top:r,bottom:s,left:h,right:c,width:u,height:a}:null),!l)break;p=p&amp;&amp;w(p)}return l}},t.prototype._getRootRect=function(){var t,t,e,t,t;return t=this.root&amp;&amp;!c(this.root)?_(this.root):(e=(t=c(this.root)?this.root:d).documentElement,t=t.body,{top:0,left:0,right:e.clientWidth||t.clientWidth,width:e.clientWidth||t.clientWidth,bottom:e.clientHeight||t.clientHeight,height:e.clientHeight||t.clientHeight}),this._expandRectByRootMargin(t)},t.prototype._expandRectByRootMargin=function(o){var t=this._rootMarginValues.map(function(t,e){return&quot;px&quot;==t.unit?t.value:t.value*(e%2?o.width:o.height)/100}),t={top:o.top-t[0],right:o.right+t[1],bottom:o.bottom+t[2],left:o.left-t[3]};return t.width=t.right-t.left,t.height=t.bottom-t.top,t},t.prototype._hasCrossedThreshold=function(t,e){var o=t&amp;&amp;t.isIntersecting?t.intersectionRatio||0:-1,n=e.isIntersecting?e.intersectionRatio||0:-1;if(o!==n)for(var i=0;i&lt;this.thresholds.length;i++){var r=this.thresholds[i];if(r==o||r==n||r&lt;o!=r&lt;n)return!0}},t.prototype._rootIsInDom=function(){return!this.root||i(d,this.root)},t.prototype._rootContainsTarget=function(t){var e=this.root&amp;&amp;(this.root.ownerDocument||this.root)||d;return i(e,t)&amp;&amp;(!this.root||e==t.ownerDocument)},t.prototype._registerInstance=function(){o.indexOf(this)&lt;0&amp;&amp;o.push(this)},t.prototype._unregisterInstance=function(){var t=o.indexOf(this);-1!=t&amp;&amp;o.splice(t,1)},window.IntersectionObserver=t,window.IntersectionObserverEntry=u))}();