*{margin:0;padding:0}html,body{overflow:hidden}.webgl{position:fixed;top:0;left:0;outline:none}.button{position:fixed;padding:1vmin 2vmin;text-align:center;text-decoration:none;display:inline-block;font-size:3vmin;font-family:Helvetica,Arial,sans-serif;bottom:4vmin;left:50%;transform:translate(-50%);cursor:pointer;border-radius:.5vmin}.version1{background-color:#e70960;border:1px solid #f6dd00;color:#f6dd00}.version2{background-color:#71c0a7;border:1px solid #7ff8ff;color:#7ff8ff}