*{margin:0;padding:0;box-sizing:border-box;-webkit-user-select:none;user-select:none}body{width:100%;background-color:#000;display:flex;align-items:center;justify-content:center;padding:0 20px;height:100vh;overflow:hidden}#app canvas{border:1px solid gold;width:100%;max-width:1600px}