body{margin:0;padding:0;overflow:hidden;background-color:#f0f0f0}#app{font-family:Avenir,Helvetica,Arial,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;text-align:center;color:#2c3e50}#game{display:flex;justify-content:center}#restart{position:absolute;top:10px;left:10px}