section{text-align:center;align-items:center}section h1{text-align:center}.juego{grid-template-rows:repeat(3,1fr);grid-template-columns:repeat(3,1fr);gap:10px;width:300px;margin:auto;display:grid}.juego button{color:#0ff;cursor:pointer;background:#222;border:2px solid #0ff;width:100%;height:100%;font-size:50px}