.game{text-align:center;font-family:sans-serif}.board{display:grid;grid-template-columns:repeat(3,100px);gap:5px;justify-content:center;margin:20px auto}.cell{width:100px;height:100px;font-size:2rem;display:flex;align-items:center;justify-content:center;background:#eee;cursor:pointer;border:2px solid #ccc;transition:background .2s}.cell:hover{background:#ddd}.info{margin-top:20px}