html,body{margin:0;padding:0;width:100%;height:100%;background:#1a1a1a;overflow:hidden;overscroll-behavior:none;touch-action:none;-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent}#app{width:100%;height:100%;display:flex;align-items:center;justify-content:center}#app canvas{display:block;touch-action:none}