<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css"> <script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/js/bootstrap.min.js"></script> <script src="//code.jquery.com/jquery-1.11.1.min.js"></script> <!------ Include the above in your HEAD tag ----------> <div class="container"> <div class="row"> <h2>Create your snippet's HTML, CSS and Javascript in the editor tabs</h2> <div id="loading"> <ul class="bokeh"> <li></li> <li></li> <li></li> </ul> </div> </div> </div>

#loading { background: #f4f4f2 url("img/page-bg.png") repeat scroll 0 0; height: 100%; left: 0; margin: auto; position: fixed; top: 0; width: 100%; } .bokeh { border: 0.01em solid rgba(150, 150, 150, 0.1); border-radius: 50%; font-size: 100px; height: 1em; list-style: outside none none; margin: 0 auto; position: relative; top: 35%; width: 1em; z-index: 2147483647; } .bokeh li { border-radius: 50%; height: 0.2em; position: absolute; width: 0.2em; } .bokeh li:nth-child(1) { animation: 1.13s linear 0s normal none infinite running rota, 3.67s ease-in-out 0s alternate none infinite running opa; background: #00c176 none repeat scroll 0 0; left: 50%; margin: 0 0 0 -0.1em; top: 0; transform-origin: 50% 250% 0; } .bokeh li:nth-child(2) { animation: 1.86s linear 0s normal none infinite running rota, 4.29s ease-in-out 0s alternate none infinite running opa; background: #ff003c none repeat scroll 0 0; margin: -0.1em 0 0; right: 0; top: 50%; transform-origin: -150% 50% 0; } .bokeh li:nth-child(3) { animation: 1.45s linear 0s normal none infinite running rota, 5.12s ease-in-out 0s alternate none infinite running opa; background: #fabe28 none repeat scroll 0 0; bottom: 0; left: 50%; margin: 0 0 0 -0.1em; transform-origin: 50% -150% 0; } .bokeh li:nth-child(4) { animation: 1.72s linear 0s normal none infinite running rota, 5.25s ease-in-out 0s alternate none infinite running opa; background: #88c100 none repeat scroll 0 0; margin: -0.1em 0 0; top: 50%; transform-origin: 250% 50% 0; } @keyframes opa { 12% { opacity: 0.8; } 19.5% { opacity: 0.88; } 37.2% { opacity: 0.64; } 40.5% { opacity: 0.52; } 52.7% { opacity: 0.69; } 60.2% { opacity: 0.6; } 66.6% { opacity: 0.52; } 70% { opacity: 0.63; } 79.9% { opacity: 0.6; } 84.2% { opacity: 0.75; } 91% { opacity: 0.87; } } @keyframes rota { 100% { transform: rotate(360deg); } } }