body{margin:0;overflow:hidden;background-color:#22252a;font-family:sans-serif;user-select:none;-webkit-user-select:none;touch-action:none}#root{width:100vw;height:100vh}.ui-layer{position:absolute;top:15px;width:100%;text-align:center;color:#fff;pointer-events:none;text-shadow:1px 1px 3px rgba(0,0,0,.8);z-index:10}.ui-layer h2{margin:0 0 5px;font-size:20px}.key{display:inline-block;background:#555;color:#fff;border-radius:4px;padding:2px 6px;font-family:monospace;font-weight:700}