#root{width:100vw;height:100vh}body{margin:0}.controls{position:fixed;bottom:0;left:0;width:100%;display:flex;justify-content:center;align-items:center;z-index:10;padding:16px;gap:16px;pointer-events:none}.controls__key{font-family:sans-serif;font-weight:700;font-size:2rem;border:2px solid #fff;background-color:#ffffff80;border-radius:4px;padding:8px 16px}