html,body{height:100%;margin:0;overflow:hidden}body{color:#666;font:16px Verdana,sans-serif}header{z-index:2;pointer-events:none;flex-direction:column;justify-content:center;align-items:center;width:100%;height:100%;display:flex;position:absolute;top:0;left:0}h1{color:#ffffff4d;margin:0;padding:0;font-weight:400}h1 span{color:#fff6}canvas{z-index:1;width:100%;height:100%;position:absolute;top:0;left:0}