html,body{height:100%;margin:0;padding:0;overflow:hidden;background-color:#000}canvas{display:block}#desktop-only-warning{display:none;position:fixed;inset:0;background:#000;color:#fff;font-family:monospace;font-size:14px;text-align:center;flex-direction:column;align-items:center;justify-content:center;gap:12px;z-index:99999}#desktop-only-warning p{margin:0;opacity:.5;font-size:12px}