html,body{margin:0;min-height:100%;background:#102f3b;font-family:Arial,Noto Sans KR,sans-serif;overflow:hidden}body{display:grid;place-items:center}#game{width:100vw;height:100vh;display:grid;place-items:center}canvas{display:block;max-width:100vw;max-height:100vh;box-shadow:0 0 28px #00000052}