body{background-color:#222;color:#fff;padding:0;margin:0}a{transition:color .2s linear}a:hover,a:active{text-decoration:none}body>header{background-color:#666;text-align:center}body>header ul{padding:0;margin:0}body>header ul li{display:inline-block;padding:0;margin:0 .5rem}body>header a{color:aqua}body>header a:hover,body>header a:active{color:#fff}article a:link{color:orange}article a:hover,article a:active{color:gold}article a:visited{color:#999}article>header{background-color:#000;color:#999;text-align:center;padding:1rem;font-family:Georgia,"Times New Roman",Times,serif}article>header h1{padding:1rem 0;margin:0}section:not([class=videos]){max-width:800px;margin:2rem auto}section{font-family:Arial,sans-serif;padding:0 2rem}section>*{margin:1rem;line-height:1.5rem}section ul{margin:1rem;padding:0 1.5rem}section h2{padding:0;margin:1rem 0}footer{color:#999;border-top:1px dotted #666;margin:2rem 2rem 0 2rem;padding:1rem;text-align:center;font-family:Arial,sans-serif}interactive-loader{background-color:#eee;display:block;margin:0 auto;min-width:320px;min-height:240px;padding:0;margin:0 2rem}