html,body{margin:0;padding:0;width:100%;height:100%;overflow:hidden;background:#000;font-family:sans-serif;color:#fff}#app{width:100vw;height:100vh;display:flex;align-items:center;justify-content:center}#game-container{width:100vw;height:100vh;display:flex;align-items:center;justify-content:center;overflow:hidden;background:#0c3b3e}#game-container canvas{display:block}