body,html{height:100%;margin:0;padding:0;background-color:#000;overflow:hidden}.full{position:absolute;top:0;left:0;right:0;bottom:0;overflow:hidden;display:block}#canvas{position:relative;top:0;left:0;right:0;bottom:0;width:100%;height:100%}.busy{filter:opacity(.5)}.busy .full:after{position:relative;content:"";display:block;z-index:100;width:200px;height:200px;top:-60%;background-color:#fff;margin-left:auto;margin-right:auto;margin-bottom:-100px;border-radius:100%;animation:sk-scaleout 1s infinite ease-in-out}@keyframes sk-scaleout{0%{-webkit-transform:scale(0);transform:scale(0)}100%{-webkit-transform:scale(1);transform:scale(1);opacity:0}}