diff --git a/dist/reveal.min.js b/dist/reveal.min.js
index 65a37309..69b52700 100644
--- a/dist/reveal.min.js
+++ b/dist/reveal.min.js
@@ -1,8 +1,8 @@
 /*!
-* reveal.js 4.0.0-dev (Mon Mar 30 2020)
+* reveal.js 4.0.0-dev (Tue Mar 31 2020)
 * https://revealjs.com
 * MIT licensed
 *
 * Copyright (C) 2020 Hakim El Hattab, https://hakim.se
 */
-!function(e){var t={};function i(a){if(t[a])return t[a].exports;var s=t[a]={i:a,l:!1,exports:{}};return e[a].call(s.exports,s,s.exports,i),s.l=!0,s.exports}i.m=e,i.c=t,i.d=function(e,t,a){i.o(e,t)||Object.defineProperty(e,t,{enumerable:!0,get:a})},i.r=function(e){"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(e,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(e,"__esModule",{value:!0})},i.t=function(e,t){if(1&t&&(e=i(e)),8&t)return e;if(4&t&&"object"==typeof e&&e&&e.__esModule)return e;var a=Object.create(null);if(i.r(a),Object.defineProperty(a,"default",{enumerable:!0,value:e}),2&t&&"string"!=typeof e)for(var s in e)i.d(a,s,function(t){return e[t]}.bind(null,s));return a},i.n=function(e){var t=e&&e.__esModule?function(){return e.default}:function(){return e};return i.d(t,"a",t),t},i.o=function(e,t){return Object.prototype.hasOwnProperty.call(e,t)},i.p="",i(i.s=0)}([function(e,t,i){"use strict";i.r(t);const a=/registerPlugin|registerKeyboardShortcut|addKeyBinding|addEventListener/,s=/fade-(down|up|right|left|out|in-then-out|in-then-semi-out)|semi-fade-out|current-visible|shrink|grow/,n=(e,t)=>{for(let i in t)e[i]=t[i];return e},r=(e,t)=>Array.from(e.querySelectorAll(t)),o=e=>{if("string"==typeof e){if("null"===e)return null;if("true"===e)return!0;if("false"===e)return!1;if(e.match(/^-?[\d\.]+$/))return parseFloat(e)}return e},l=(e,t)=>{e.style.transform=t},d=(e,t)=>{let i=e.parentNode;for(;i;){let e=i.matches||i.matchesSelector||i.msMatchesSelector;if(e&&e.call(i,t))return i;i=i.parentNode}return null},c=e=>{let t=document.createElement("style");return t.type="text/css",e&&e.length>0&&(t.styleSheet?t.styleSheet.cssText=e:t.appendChild(document.createTextNode(e))),document.head.appendChild(t),t},h=()=>{let e={};location.search.replace(/[A-Z0-9]+?=([\w\.%-]*)/gi,t=>{e[t.split("=").shift()]=t.split("=").pop()});for(let t in e){let i=e[t];e[t]=o(unescape(i))}return void 0!==e.dependencies&&delete e.dependencies,e},u=navigator.userAgent,g=document.createElement("div"),v=/(iphone|ipod|ipad|android)/gi.test(u)||"MacIntel"===navigator.platform&&navigator.maxTouchPoints>1,p=/chrome/i.test(u)&&!/edge/i.test(u),m=/android/gi.test(u),f="zoom"in g.style&&!v&&(p||/Version\/[\d\.]+.*Safari/.test(u));class b{constructor(e){this.Reveal=e}shouldPreload(e){let t=this.Reveal.getConfig().preloadIframes;return"boolean"!=typeof t&&(t=e.hasAttribute("data-preload")),t}load(e,t={}){e.style.display=this.Reveal.getConfig().display,r(e,"img[data-src], video[data-src], audio[data-src], iframe[data-src]").forEach(e=>{("IFRAME"!==e.tagName||this.shouldPreload(e))&&(e.setAttribute("src",e.getAttribute("data-src")),e.setAttribute("data-lazy-loaded",""),e.removeAttribute("data-src"))}),r(e,"video, audio").forEach(e=>{let t=0;r(e,"source[data-src]").forEach(e=>{e.setAttribute("src",e.getAttribute("data-src")),e.removeAttribute("data-src"),e.setAttribute("data-lazy-loaded",""),t+=1}),t>0&&e.load()});let i=e.slideBackgroundElement;if(i){i.style.display="block";let a=e.slideBackgroundContentElement,s=e.getAttribute("data-background-iframe");if(!1===i.hasAttribute("data-loaded")){i.setAttribute("data-loaded","true");let n=e.getAttribute("data-background-image"),r=e.getAttribute("data-background-video"),o=e.hasAttribute("data-background-video-loop"),l=e.hasAttribute("data-background-video-muted");if(n)a.style.backgroundImage="url("+encodeURI(n)+")";else if(r&&!this.Reveal.isSpeakerNotes()){let e=document.createElement("video");o&&e.setAttribute("loop",""),l&&(e.muted=!0),v&&(e.muted=!0,e.autoplay=!0,e.setAttribute("playsinline","")),r.split(",").forEach(t=>{e.innerHTML+='<source src="'+t+'">'}),a.appendChild(e)}else if(s&&!0!==t.excludeIframes){let e=document.createElement("iframe");e.setAttribute("allowfullscreen",""),e.setAttribute("mozallowfullscreen",""),e.setAttribute("webkitallowfullscreen",""),e.setAttribute("allow","autoplay"),e.setAttribute("data-src",s),e.style.width="100%",e.style.height="100%",e.style.maxHeight="100%",e.style.maxWidth="100%",a.appendChild(e)}}let n=a.querySelector("iframe[data-src]");n&&this.shouldPreload(i)&&!/autoplay=(1|true|yes)/gi.test(s)&&n.getAttribute("src")!==s&&n.setAttribute("src",s)}}unload(e){e.style.display="none";let t=this.Reveal.getSlideBackground(e);t&&(t.style.display="none",r(t,"iframe[src]").forEach(e=>{e.removeAttribute("src")})),r(e,"video[data-lazy-loaded][src], audio[data-lazy-loaded][src], iframe[data-lazy-loaded][src]").forEach(e=>{e.setAttribute("data-src",e.getAttribute("src")),e.removeAttribute("src")}),r(e,"video[data-lazy-loaded] source[src], audio source[src]").forEach(e=>{e.setAttribute("data-src",e.getAttribute("src")),e.removeAttribute("src")})}formatEmbeddedContent(){let e=(e,t,i)=>{r(this.Reveal.getSlidesElement(),"iframe["+e+'*="'+t+'"]').forEach(t=>{let a=t.getAttribute(e);a&&-1===a.indexOf(i)&&t.setAttribute(e,a+(/\?/.test(a)?"&":"?")+i)})};e("src","youtube.com/embed/","enablejsapi=1"),e("data-src","youtube.com/embed/","enablejsapi=1"),e("src","player.vimeo.com/","api=1"),e("data-src","player.vimeo.com/","api=1")}startEmbeddedContent(e){e&&!this.Reveal.isSpeakerNotes()&&(r(e,'img[src$=".gif"]').forEach(e=>{e.setAttribute("src",e.getAttribute("src"))}),r(e,"video, audio").forEach(e=>{if(d(e,".fragment")&&!d(e,".fragment.visible"))return;let t=this.Reveal.getConfig().autoPlayMedia;if("boolean"!=typeof t&&(t=e.hasAttribute("data-autoplay")||!!d(e,".slide-background")),t&&"function"==typeof e.play)if(e.readyState>1)this.startEmbeddedMedia({target:e});else if(v){let t=e.play();t&&"function"==typeof t.catch&&!1===e.controls&&t.catch(()=>{e.controls=!0,e.addEventListener("play",()=>{e.controls=!1})})}else e.removeEventListener("loadeddata",this.startEmbeddedMedia),e.addEventListener("loadeddata",this.startEmbeddedMedia)}),r(e,"iframe[src]").forEach(e=>{d(e,".fragment")&&!d(e,".fragment.visible")||this.startEmbeddedIframe({target:e})}),r(e,"iframe[data-src]").forEach(e=>{d(e,".fragment")&&!d(e,".fragment.visible")||e.getAttribute("src")!==e.getAttribute("data-src")&&(e.removeEventListener("load",this.startEmbeddedIframe),e.addEventListener("load",this.startEmbeddedIframe),e.setAttribute("src",e.getAttribute("data-src")))}))}startEmbeddedMedia(e){let t=!!d(e.target,"html"),i=!!d(e.target,".present");t&&i&&(e.target.currentTime=0,e.target.play()),e.target.removeEventListener("loadeddata",this.startEmbeddedMedia)}startEmbeddedIframe(e){let t=e.target;if(t&&t.contentWindow){let i=!!d(e.target,"html"),a=!!d(e.target,".present");if(i&&a){let e=this.Reveal.getConfig().autoPlayMedia;"boolean"!=typeof e&&(e=t.hasAttribute("data-autoplay")||!!d(t,".slide-background")),/youtube\.com\/embed\//.test(t.getAttribute("src"))&&e?t.contentWindow.postMessage('{"event":"command","func":"playVideo","args":""}',"*"):/player\.vimeo\.com\//.test(t.getAttribute("src"))&&e?t.contentWindow.postMessage('{"method":"play"}',"*"):t.contentWindow.postMessage("slide:start","*")}}}stopEmbeddedContent(e,t={}){t=n({unloadIframes:!0},t),e&&e.parentNode&&(r(e,"video, audio").forEach(e=>{e.hasAttribute("data-ignore")||"function"!=typeof e.pause||(e.setAttribute("data-paused-by-reveal",""),e.pause())}),r(e,"iframe").forEach(e=>{e.contentWindow&&e.contentWindow.postMessage("slide:stop","*"),e.removeEventListener("load",this.startEmbeddedIframe)}),r(e,'iframe[src*="youtube.com/embed/"]').forEach(e=>{!e.hasAttribute("data-ignore")&&e.contentWindow&&"function"==typeof e.contentWindow.postMessage&&e.contentWindow.postMessage('{"event":"command","func":"pauseVideo","args":""}',"*")}),r(e,'iframe[src*="player.vimeo.com/"]').forEach(e=>{!e.hasAttribute("data-ignore")&&e.contentWindow&&"function"==typeof e.contentWindow.postMessage&&e.contentWindow.postMessage('{"method":"pause"}',"*")}),!0===t.unloadIframes&&r(e,"iframe[data-src]").forEach(e=>{e.setAttribute("src","about:blank"),e.removeAttribute("src")}))}}class y{constructor(e){this.Reveal=e}render(){this.element=document.createElement("div"),this.element.className="slide-number",this.Reveal.getRevealElement().appendChild(this.element)}configure(e,t){let i="none";e.slideNumber&&!this.Reveal.isPrintingPDF()&&("all"===e.showSlideNumber||"speaker"===e.showSlideNumber&&this.Reveal.isSpeakerNotes())&&(i="block"),this.element.style.display=i}update(){this.Reveal.getConfig().slideNumber&&this.element&&(this.element.innerHTML=this.getSlideNumber())}getSlideNumber(e=this.Reveal.getCurrentSlide()){let t,i=this.Reveal.getConfig(),a="h.v";if("function"==typeof i.slideNumber)t=i.slideNumber(e);else switch("string"==typeof i.slideNumber&&(a=i.slideNumber),/c/.test(a)||1!==this.Reveal.getHorizontalSlides().length||(a="c"),t=[],a){case"c":t.push(this.Reveal.getSlidePastCount(e)+1);break;case"c/t":t.push(this.Reveal.getSlidePastCount(e)+1,"/",this.Reveal.getTotalSlides());break;default:let i=this.Reveal.getIndices(e);t.push(i.h+1);let s="h/v"===a?"/":".";this.Reveal.isVerticalSlide(e)&&t.push(s,i.v+1)}let s="#"+this.Reveal.location.getHash(e);return this.formatNumber(t[0],t[1],t[2],s)}formatNumber(e,t,i,a="#"+this.Reveal.location.getHash()){return"number"!=typeof i||isNaN(i)?`<a href="${a}">\n\t\t\t\t\t<span class="slide-number-a">${e}</span>\n\t\t\t\t\t</a>`:`<a href="${a}">\n\t\t\t\t\t<span class="slide-number-a">${e}</span>\n\t\t\t\t\t<span class="slide-number-delimiter">${t}</span>\n\t\t\t\t\t<span class="slide-number-b">${i}</span>\n\t\t\t\t\t</a>`}}const w=e=>{let t=e.match(/^#([0-9a-f]{3})$/i);if(t&&t[1])return t=t[1],{r:17*parseInt(t.charAt(0),16),g:17*parseInt(t.charAt(1),16),b:17*parseInt(t.charAt(2),16)};let i=e.match(/^#([0-9a-f]{6})$/i);if(i&&i[1])return i=i[1],{r:parseInt(i.substr(0,2),16),g:parseInt(i.substr(2,2),16),b:parseInt(i.substr(4,2),16)};let a=e.match(/^rgb\s*\(\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*\)$/i);if(a)return{r:parseInt(a[1],10),g:parseInt(a[2],10),b:parseInt(a[3],10)};let s=e.match(/^rgba\s*\(\s*(\d+)\s*,\s*(\d+)\s*,\s*(\d+)\s*\,\s*([\d]+|[\d]*.[\d]+)\s*\)$/i);return s?{r:parseInt(s[1],10),g:parseInt(s[2],10),b:parseInt(s[3],10),a:parseFloat(s[4])}:null};class A{constructor(e){this.Reveal=e}render(){this.element=document.createElement("div"),this.element.className="backgrounds",this.Reveal.getRevealElement().appendChild(this.element)}create(){this.Reveal.isPrintingPDF();this.element.innerHTML="",this.element.classList.add("no-transition"),this.Reveal.getHorizontalSlides().forEach(e=>{let t=this.createBackground(e,this.element);r(e,"section").forEach(e=>{this.createBackground(e,t),t.classList.add("stack")})}),this.Reveal.getConfig().parallaxBackgroundImage?(this.element.style.backgroundImage='url("'+this.Reveal.getConfig().parallaxBackgroundImage+'")',this.element.style.backgroundSize=this.Reveal.getConfig().parallaxBackgroundSize,this.element.style.backgroundRepeat=this.Reveal.getConfig().parallaxBackgroundRepeat,this.element.style.backgroundPosition=this.Reveal.getConfig().parallaxBackgroundPosition,setTimeout(()=>{this.Reveal.getRevealElement().classList.add("has-parallax-background")},1)):(this.element.style.backgroundImage="",this.Reveal.getRevealElement().classList.remove("has-parallax-background"))}createBackground(e,t){let i=document.createElement("div");i.className="slide-background "+e.className.replace(/present|past|future/,"");let a=document.createElement("div");return a.className="slide-background-content",i.appendChild(a),t.appendChild(i),e.slideBackgroundElement=i,e.slideBackgroundContentElement=a,this.sync(e),i}sync(e){let t=e.slideBackgroundElement,i=e.slideBackgroundContentElement;e.classList.remove("has-dark-background"),e.classList.remove("has-light-background"),t.removeAttribute("data-loaded"),t.removeAttribute("data-background-hash"),t.removeAttribute("data-background-size"),t.removeAttribute("data-background-transition"),t.style.backgroundColor="",i.style.backgroundSize="",i.style.backgroundRepeat="",i.style.backgroundPosition="",i.style.backgroundImage="",i.style.opacity="",i.innerHTML="";let a={background:e.getAttribute("data-background"),backgroundSize:e.getAttribute("data-background-size"),backgroundImage:e.getAttribute("data-background-image"),backgroundVideo:e.getAttribute("data-background-video"),backgroundIframe:e.getAttribute("data-background-iframe"),backgroundColor:e.getAttribute("data-background-color"),backgroundRepeat:e.getAttribute("data-background-repeat"),backgroundPosition:e.getAttribute("data-background-position"),backgroundTransition:e.getAttribute("data-background-transition"),backgroundOpacity:e.getAttribute("data-background-opacity")};a.background&&(/^(http|file|\/\/)/gi.test(a.background)||/\.(svg|png|jpg|jpeg|gif|bmp)([?#\s]|$)/gi.test(a.background)?e.setAttribute("data-background-image",a.background):t.style.background=a.background),(a.background||a.backgroundColor||a.backgroundImage||a.backgroundVideo||a.backgroundIframe)&&t.setAttribute("data-background-hash",a.background+a.backgroundSize+a.backgroundImage+a.backgroundVideo+a.backgroundIframe+a.backgroundColor+a.backgroundRepeat+a.backgroundPosition+a.backgroundTransition+a.backgroundOpacity),a.backgroundSize&&t.setAttribute("data-background-size",a.backgroundSize),a.backgroundColor&&(t.style.backgroundColor=a.backgroundColor),a.backgroundTransition&&t.setAttribute("data-background-transition",a.backgroundTransition),e.hasAttribute("data-preload")&&t.setAttribute("data-preload",""),a.backgroundSize&&(i.style.backgroundSize=a.backgroundSize),a.backgroundRepeat&&(i.style.backgroundRepeat=a.backgroundRepeat),a.backgroundPosition&&(i.style.backgroundPosition=a.backgroundPosition),a.backgroundOpacity&&(i.style.opacity=a.backgroundOpacity);let s=a.backgroundColor;if(!s){let e=window.getComputedStyle(t);e&&e.backgroundColor&&(s=e.backgroundColor)}if(s){let t=w(s);t&&0!==t.a&&("string"==typeof(n=s)&&(n=w(n)),(n?(299*n.r+587*n.g+114*n.b)/1e3:null)<128?e.classList.add("has-dark-background"):e.classList.add("has-light-background"))}var n}update(e=!1){let t=this.Reveal.getCurrentSlide(),i=this.Reveal.getIndices(),a=null,s=this.Reveal.getConfig().rtl?"future":"past",n=this.Reveal.getConfig().rtl?"past":"future";if(Array.from(this.element.childNodes).forEach((t,o)=>{t.classList.remove("past","present","future"),o<i.h?t.classList.add(s):o>i.h?t.classList.add(n):(t.classList.add("present"),a=t),(e||o===i.h)&&r(t,".slide-background").forEach((e,t)=>{e.classList.remove("past","present","future"),t<i.v?e.classList.add("past"):t>i.v?e.classList.add("future"):(e.classList.add("present"),o===i.h&&(a=e))})}),this.previousBackground&&this.Reveal.slideContent.stopEmbeddedContent(this.previousBackground,{unloadIframes:!this.Reveal.slideContent.shouldPreload(this.previousBackground)}),a){this.Reveal.slideContent.startEmbeddedContent(a);let e=a.querySelector(".slide-background-content");if(e){let t=e.style.backgroundImage||"";/\.gif/i.test(t)&&(e.style.backgroundImage="",window.getComputedStyle(e).opacity,e.style.backgroundImage=t)}let t=this.previousBackground?this.previousBackground.getAttribute("data-background-hash"):null,i=a.getAttribute("data-background-hash");i&&i===t&&a!==this.previousBackground&&this.element.classList.add("no-transition"),this.previousBackground=a}t&&["has-light-background","has-dark-background"].forEach(e=>{t.classList.contains(e)?this.Reveal.getRevealElement().classList.add(e):this.Reveal.getRevealElement().classList.remove(e)},this),setTimeout(()=>{this.element.classList.remove("no-transition")},1)}updateParallax(){let e=this.Reveal.getIndices();if(this.Reveal.getConfig().parallaxBackgroundImage){let t,i,a=this.Reveal.getHorizontalSlides(),s=this.Reveal.getVerticalSlides(),n=this.element.style.backgroundSize.split(" ");1===n.length?t=i=parseInt(n[0],10):(t=parseInt(n[0],10),i=parseInt(n[1],10));let r,o,l=this.element.offsetWidth,d=a.length;r="number"==typeof this.Reveal.getConfig().parallaxBackgroundHorizontal?this.Reveal.getConfig().parallaxBackgroundHorizontal:d>1?(t-l)/(d-1):0,o=r*e.h*-1;let c,h,u=this.element.offsetHeight,g=s.length;c="number"==typeof this.Reveal.getConfig().parallaxBackgroundVertical?this.Reveal.getConfig().parallaxBackgroundVertical:(i-u)/(g-1),h=g>0?c*e.v:0,this.element.style.backgroundPosition=o+"px "+-h+"px"}}}class R{constructor(e){this.Reveal=e,this.autoAnimateCounter=0}run(e,t){if(this.reset(),e.hasAttribute("data-auto-animate")&&t.hasAttribute("data-auto-animate")){this.autoAnimateStyleSheet=this.autoAnimateStyleSheet||c();let i=this.getAutoAnimateOptions(t);e.dataset.autoAnimate="pending",t.dataset.autoAnimate="pending";let a=this.Reveal.getSlides();i.slideDirection=a.indexOf(t)>a.indexOf(e)?"forward":"backward";let s=this.getAutoAnimatableElements(e,t).map(e=>this.autoAnimateElements(e.from,e.to,e.options||{},i,this.autoAnimateCounter++));if("false"!==t.dataset.autoAnimateUnmatched&&!0===this.Reveal.getConfig().autoAnimateUnmatched){let e=.8*i.duration,a=.2*i.duration;this.getUnmatchedAutoAnimateElements(t).forEach(e=>{let t=this.getAutoAnimateOptions(e,i),a="unmatched";t.duration===i.duration&&t.delay===i.delay||(a="unmatched-"+this.autoAnimateCounter++,s.push(`[data-auto-animate="running"] [data-auto-animate-target="${a}"] { transition: opacity ${t.duration}s ease ${t.delay}s; }`)),e.dataset.autoAnimateTarget=a},this),s.push(`[data-auto-animate="running"] [data-auto-animate-target="unmatched"] { transition: opacity ${e}s ease ${a}s; }`)}this.autoAnimateStyleSheet.innerHTML=s.join(""),requestAnimationFrame(()=>{this.autoAnimateStyleSheet&&(getComputedStyle(this.autoAnimateStyleSheet).fontWeight,t.dataset.autoAnimate="running")}),this.Reveal.dispatchEvent({type:"autoanimate",data:{fromSlide:e,toSlide:t,sheet:this.autoAnimateStyleSheet}})}}reset(){r(this.Reveal.getRevealElement(),'[data-auto-animate]:not([data-auto-animate=""])').forEach(e=>{e.dataset.autoAnimate=""}),r(this.Reveal.getRevealElement(),"[data-auto-animate-target]").forEach(e=>{delete e.dataset.autoAnimateTarget}),this.autoAnimateStyleSheet&&this.autoAnimateStyleSheet.parentNode&&(this.autoAnimateStyleSheet.parentNode.removeChild(this.autoAnimateStyleSheet),this.autoAnimateStyleSheet=null)}autoAnimateElements(e,t,i,a,n){e.dataset.autoAnimateTarget="",t.dataset.autoAnimateTarget=n;let r=this.getAutoAnimateOptions(t,a);void 0!==i.delay&&(r.delay=i.delay),void 0!==i.duration&&(r.duration=i.duration),void 0!==i.easing&&(r.easing=i.easing);let o=this.getAutoAnimatableProperties("from",e,i),l=this.getAutoAnimatableProperties("to",t,i);if(t.classList.contains("fragment")&&(delete l.styles.opacity,e.classList.contains("fragment"))){(e.className.match(s)||[""])[0]===(t.className.match(s)||[""])[0]&&"forward"===a.slideDirection&&t.classList.add("visible","disabled")}if(!1!==i.translate||!1!==i.scale){let e=this.Reveal.getScale(),t={x:(o.x-l.x)/e,y:(o.y-l.y)/e,scaleX:o.width/l.width,scaleY:o.height/l.height};t.x=Math.round(1e3*t.x)/1e3,t.y=Math.round(1e3*t.y)/1e3,t.scaleX=Math.round(1e3*t.scaleX)/1e3,t.scaleX=Math.round(1e3*t.scaleX)/1e3;let a=!1!==i.translate&&(0!==t.x||0!==t.y),s=!1!==i.scale&&(0!==t.scaleX||0!==t.scaleY);if(a||s){let e=[];a&&e.push(`translate(${t.x}px, ${t.y}px)`),s&&e.push(`scale(${t.scaleX}, ${t.scaleY})`),o.styles.transform=e.join(" "),o.styles["transform-origin"]="top left",l.styles.transform="none"}}for(let e in l.styles){const t=l.styles[e],i=o.styles[e];t===i?delete l.styles[e]:(!0===t.explicitValue&&(l.styles[e]=t.value),!0===i.explicitValue&&(o.styles[e]=i.value))}let d="",c=Object.keys(l.styles);if(c.length>0){o.styles.transition="none",l.styles.transition=`all ${r.duration}s ${r.easing} ${r.delay}s`,l.styles["transition-property"]=c.join(", "),l.styles["will-change"]=c.join(", "),d='[data-auto-animate-target="'+n+'"] {'+Object.keys(o.styles).map(e=>e+": "+o.styles[e]+" !important;").join("")+'}[data-auto-animate="running"] [data-auto-animate-target="'+n+'"] {'+Object.keys(l.styles).map(e=>e+": "+l.styles[e]+" !important;").join("")+"}"}return d}getAutoAnimateOptions(e,t){let i={easing:this.Reveal.getConfig().autoAnimateEasing,duration:this.Reveal.getConfig().autoAnimateDuration,delay:0};if(i=n(i,t),e.closest&&e.parentNode){let t=e.parentNode.closest("[data-auto-animate-target]");t&&(i=this.getAutoAnimateOptions(t,i))}return 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\ No newline at end of file
diff --git a/gulpfile.js b/gulpfile.js
index a4d8ca63..8cdab047 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -1,8 +1,16 @@
+const pkg = require('./package.json')
+const path = require('path')
+const glob = require('glob')
+const colors = require('colors')
+const yargs = require('yargs')
+const webpack = require('webpack-stream')
+const { runQunitPuppeteer, printResultSummary, printFailedTests } = require('node-qunit-puppeteer')
+
 const gulp = require('gulp')
+const tap = require('gulp-tap')
 const zip = require('gulp-zip')
 const sass = require('gulp-sass')
 const babel = require('gulp-babel')
-const qunit = require('gulp-qunit')
 const header = require('gulp-header')
 const eslint = require('gulp-eslint')
 const uglify = require('gulp-uglify')
@@ -10,9 +18,6 @@ const rename = require('gulp-rename')
 const minify = require('gulp-clean-css')
 const connect = require('gulp-connect')
 const autoprefixer = require('gulp-autoprefixer')
-const yargs = require('yargs')
-const pkg = require('./package.json')
-const webpack = require('webpack-stream');
 
 const root = yargs.argv.root || '.'
 const port = yargs.argv.port || 8000
@@ -33,9 +38,7 @@ const swallowError = function(error) {
 
 gulp.task('js', () => gulp.src(['./js/index.js'])
         .pipe(babel({ presets: ['@babel/preset-env'] }))
-        .pipe(webpack({
-            mode: 'production'
-        }))
+        .pipe(webpack({ mode: 'production' }))
         .on('error', swallowError)
         .pipe(header(license, {pkg: pkg}))
         .pipe(rename('reveal.min.js'))
@@ -62,10 +65,39 @@ gulp.task('css-core', gulp.series(
 
 gulp.task('css', gulp.parallel('css-themes', 'css-core'))
 
+gulp.task('test-qunit', function() {
+
+    let testFiles = glob.sync('test/*.html' )
+
+    return Promise.all( testFiles.map( filename => {
+        return new Promise( ( resolve, reject ) => {
+            runQunitPuppeteer({
+                targetUrl: `file://${path.join(__dirname, filename)}`,
+                timeout: 10000,
+                redirectConsole: true,
+                puppeteerArgs: ['--allow-file-access-from-files']
+            })
+                .then(result => {
+                    console.log(`\n\n${('Testing '+filename+'...').bold.blue}`);
+                    printResultSummary(result, console);
+                    if( result.stats.failed > 0 ) {
+                        printFailedTests(result, console);
+                    }
+
+                    resolve();
+                })
+                .catch(ex => {
+                    console.error(ex);
+                    reject();
+                });
+        } )
+    } ) )
+} )
+
 gulp.task('test', gulp.series(
 
-    () => gulp.src(['./js/**', 'gulpfile.js']).pipe(eslint()).pipe(eslint.format())
-    // () => gulp.src(['./test/*.html']).pipe(qunit())
+    () => gulp.src(['./js/**', 'gulpfile.js']).pipe(eslint()).pipe(eslint.format()),
+    'test-qunit'
 
 ))
 
diff --git a/js/index.js b/js/index.js
index 51b01434..05beb200 100644
--- a/js/index.js
+++ b/js/index.js
@@ -1,16 +1,14 @@
 import Presentation from './reveal.js'
 
+window.Reveal = Presentation;
+
 // Provides a backwards compatible way to initialize
 // reveal.js when there is only one presentation on
 // the page.
 //
 // Reveal.initialize({ controls: false })
 // Reveal.slide(2)
-window.Reveal = {
-
-	initialize: options => {
-		window.Reveal = new Presentation( document.querySelector( '.reveal' ), options );
-		return window.Reveal.initialize();
-	}
-
+window.Reveal.initialize = options => {
+	window.Reveal = new Presentation( document.querySelector( '.reveal' ), options );
+	return window.Reveal.initialize();
 }
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index b16be13b..a41780b4 100644
--- a/package-lock.json
+++ b/package-lock.json
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@@ -5043,6 +4969,26 @@
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@@ -6589,6 +6522,16 @@
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@@ -7358,6 +7276,12 @@
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     },
-    "qunit-phantomjs-runner": {
-      "version": "2.4.1",
-      "resolved": "https://registry.npmjs.org/qunit-phantomjs-runner/-/qunit-phantomjs-runner-2.4.1.tgz",
-      "integrity": "sha512-UBpfyREVhwSmGlJqG+KHDbA5mXGQnSjpluhhIap+5ElymTegjgsNPtq0qLAVaOA2KjcxeByDdYZ13LYNGfHCgg==",
-      "dev": true,
-      "requires": {
-        "qunit-reporter-junit": "^1.1.1"
-      }
-    },
-    "qunit-reporter-junit": {
-      "version": "1.1.1",
-      "resolved": "https://registry.npmjs.org/qunit-reporter-junit/-/qunit-reporter-junit-1.1.1.tgz",
-      "integrity": "sha1-7rYiZFeJaZPnlaEZQPGK9q+lebQ=",
-      "dev": true
-    },
     "randombytes": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/randombytes/-/randombytes-2.1.0.tgz",
@@ -7685,15 +7644,6 @@
         }
       }
     },
-    "request-progress": {
-      "version": "2.0.1",
-      "resolved": "https://registry.npmjs.org/request-progress/-/request-progress-2.0.1.tgz",
-      "integrity": "sha1-XTa7V5YcZzqlt4jbyBQf3yO0Tgg=",
-      "dev": true,
-      "requires": {
-        "throttleit": "^1.0.0"
-      }
-    },
     "require-directory": {
       "version": "2.1.1",
       "resolved": "https://registry.npmjs.org/require-directory/-/require-directory-2.1.1.tgz",
@@ -8765,12 +8715,6 @@
       "integrity": "sha1-f17oI66AUgfACvLfSoTsP8+lcLQ=",
       "dev": true
     },
-    "throttleit": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/throttleit/-/throttleit-1.0.0.tgz",
-      "integrity": "sha1-nnhYNtr0Z0MUWlmEtiaNgoUorGw=",
-      "dev": true
-    },
     "through": {
       "version": "2.3.8",
       "resolved": "https://registry.npmjs.org/through/-/through-2.3.8.tgz",
@@ -9413,9 +9357,9 @@
       },
       "dependencies": {
         "acorn": {
-          "version": "6.4.0",
-          "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.0.tgz",
-          "integrity": "sha512-gac8OEcQ2Li1dxIEWGZzsp2BitJxwkwcOm0zHAJLcPJaVvm58FRnk6RkuLRpU1EujipU2ZFODv2P9DLMfnV8mw==",
+          "version": "6.4.1",
+          "resolved": "https://registry.npmjs.org/acorn/-/acorn-6.4.1.tgz",
+          "integrity": "sha512-ZVA9k326Nwrj3Cj9jlh3wGFutC2ZornPNARZwsNYqQYgN0EsV2d53w5RN/co65Ohn4sUAUtb1rSUAOD6XN9idA==",
           "dev": true
         },
         "eslint-scope": {
diff --git a/package.json b/package.json
index 9c8ba91e..08714437 100644
--- a/package.json
+++ b/package.json
@@ -24,6 +24,12 @@
     "node": ">=9.0.0"
   },
   "devDependencies": {
+    "@babel/core": "^7.8.7",
+    "@babel/preset-env": "^7.8.7",
+    "babel-eslint": "^10.1.0",
+    "colors": "^1.4.0",
+    "express": "^4.17.1",
+    "glob": "^7.1.6",
     "gulp": "^4.0.2",
     "gulp-autoprefixer": "^7.0.1",
     "gulp-babel": "^8.0.0",
@@ -31,19 +37,16 @@
     "gulp-connect": "^5.7.0",
     "gulp-eslint": "^6.0.0",
     "gulp-header": "^2.0.9",
-    "gulp-qunit": "^2.1.1",
     "gulp-rename": "^2.0.0",
     "gulp-sass": "^4.0.2",
+    "gulp-tap": "^2.0.0",
     "gulp-uglify": "^3.0.2",
     "gulp-zip": "^5.0.1",
-    "express": "^4.17.1",
     "mustache": "^4.0.0",
+    "node-qunit-puppeteer": "^2.0.1",
     "socket.io": "^2.3.0",
-    "yargs": "^15.1.0",
     "webpack-stream": "^5.2.1",
-    "babel-eslint": "^10.1.0",
-    "@babel/core": "^7.8.7",
-    "@babel/preset-env": "^7.8.7"
+    "yargs": "^15.1.0"
   },
   "eslintConfig": {
     "env": {
diff --git a/test/test-plugins.html b/test/test-plugins.html
index 47f530bd..4e689066 100644
--- a/test/test-plugins.html
+++ b/test/test-plugins.html
@@ -58,7 +58,7 @@
 
 			var PluginE = {};
 
-			var reveal = new Reveal();
+			var reveal = new Reveal( document.querySelector( '.reveal' ) );
 
 			reveal.registerPlugin( 'PluginA', PluginA );
 			reveal.registerPlugin( 'PluginB', PluginB );