reveal.js
Version:
The HTML Presentation Framework
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JavaScript
/*!
* reveal.js 4.6.0
* https://revealjs.com
* MIT licensed
*
* Copyright (C) 2011-2023 Hakim El Hattab, https://hakim.se
*/
!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):(e="undefined"!=typeof globalThis?globalThis:e||self).Reveal=t()}(this,(function(){"use strict";const e=(e,t)=>{for(let i in t)e[i]=t[i];return e},t=(e,t)=>Array.from(e.querySelectorAll(t)),i=(e,t,i)=>{i?e.classList.add(t):e.classList.remove(t)},n=e=>{if("string"==typeof e){if("null"===e)return null;if("true"===e)return!0;if("false"===e)return!1;if(e.match(/^-?[\d\.]+$/))return parseFloat(e)}return e},s=(e,t)=>{e.style.transform=t},a=(e,t)=>{let i=e.matches||e.matchesSelector||e.msMatchesSelector;return!(!i||!i.call(e,t))},o=(e,t)=>{if("function"==typeof e.closest)return e.closest(t);for(;e;){if(a(e,t))return e;e=e.parentNode}return null},r=(e,t,i,n="")=>{let s=e.querySelectorAll("."+i);for(let t=0;t<s.length;t++){let i=s[t];if(i.parentNode===e)return i}let a=document.createElement(t);return a.className=i,a.innerHTML=n,e.appendChild(a),a},l=e=>{let 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n.className="slide-background-content",i.appendChild(n),t.appendChild(i),e.slideBackgroundElement=i,e.slideBackgroundContentElement=n,this.sync(e),i}sync(e){const t=e.slideBackgroundElement,i=e.slideBackgroundContentElement,n={background:e.getAttribute("data-background"),backgroundSize:e.getAttribute("data-background-size"),backgroundImage:e.getAttribute("data-background-image"),backgroundVideo:e.getAttribute("data-background-video"),backgroundIframe:e.getAttribute("data-background-iframe"),backgroundColor:e.getAttribute("data-background-color"),backgroundGradient:e.getAttribute("data-background-gradient"),backgroundRepeat:e.getAttribute("data-background-repeat"),backgroundPosition:e.getAttribute("data-background-position"),backgroundTransition:e.getAttribute("data-background-transition"),backgroundOpacity:e.getAttribute("data-background-opacity")},s=e.hasAttribute("data-preload");e.classList.remove("has-dark-background"),e.classList.remove("has-light-background"),t.removeAttribute("data-loaded"),t.removeAttribute("data-background-hash"),t.removeAttribute("data-background-size"),t.removeAttribute("data-background-transition"),t.style.backgroundColor="",i.style.backgroundSize="",i.style.backgroundRepeat="",i.style.backgroundPosition="",i.style.backgroundImage="",i.style.opacity="",i.innerHTML="",n.background&&(/^(http|file|\/\/)/gi.test(n.background)||/\.(svg|png|jpg|jpeg|gif|bmp|webp)([?#\s]|$)/gi.test(n.background)?e.setAttribute("data-background-image",n.background):t.style.background=n.background),(n.background||n.backgroundColor||n.backgroundGradient||n.backgroundImage||n.backgroundVideo||n.backgroundIframe)&&t.setAttribute("data-background-hash",n.background+n.backgroundSize+n.backgroundImage+n.backgroundVideo+n.backgroundIframe+n.backgroundColor+n.backgroundGradient+n.backgroundRepeat+n.backgroundPosition+n.backgroundTransition+n.backgroundOpacity),n.backgroundSize&&t.setAttribute("data-background-size",n.backgroundSize),n.backgroundColor&&(t.style.backgroundColor=n.backgroundColor),n.backgroundGradient&&(t.style.backgroundImage=n.backgroundGradient),n.backgroundTransition&&t.setAttribute("data-background-transition",n.backgroundTransition),s&&t.setAttribute("data-preload",""),n.backgroundSize&&(i.style.backgroundSize=n.backgroundSize),n.backgroundRepeat&&(i.style.backgroundRepeat=n.backgroundRepeat),n.backgroundPosition&&(i.style.backgroundPosition=n.backgroundPosition),n.backgroundOpacity&&(i.style.opacity=n.backgroundOpacity);let 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