@charset "utf-8";#puzzle-container{display:grid;grid-template-columns:repeat(3,100px);grid-template-rows:repeat(3,100px);gap:2px}.tile{display:flex;justify-content:center;align-items:center;font-size:24px;background-color:#3E7756;color:#fff;cursor:pointer}.tile.empty{background-color:transparent}