.cw-row{display:flex}.cw-cell{width:32px;height:32px;border:1px solid #444;box-sizing:border-box;position:relative;background:#000}.cw-block{background:#333}.cw-cell .front{width:100%;height:100%;display:flex;align-items:center;justify-content:center;font-size:20px}.cw-slot{outline:2px solid #2b7cff;outline-offset:-2px}select,button{padding:6px;margin:4px 0;background:#222;color:#eee;border:1px solid #444;border-radius:3px}button{background:#2b7cff;border:none;font-weight:600}button:hover{background:#1f63cc}