*{margin:0;padding:0;box-sizing:border-box}body{overflow:hidden;background:#2a2a2a;touch-action:none;-webkit-touch-callout:none;-webkit-user-select:none;user-select:none}#game-container{display:flex;justify-content:center;align-items:center;width:100vw;height:100vh}canvas{display:block;max-width:100%;max-height:100%}