*{margin:0;padding:0;box-sizing:border-box}html,body{height:100%;width:100%;overflow:hidden}body{display:flex;justify-content:center;align-items:center;background-color:#1a1a1a;font-family:monospace}#game-container{width:100%;height:100%;display:flex;justify-content:center;align-items:center}