body{color:#fff;background:#000;margin:0;overflow:hidden}#canvas{width:100%;height:100%}#shuffle-btn{color:#fff;cursor:pointer;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#ffffff26;border:none;border-radius:50%;width:48px;height:48px;font-size:20px;transition:background .2s;position:fixed;bottom:16px;right:16px}#shuffle-btn:hover{background:#ffffff4d}