#game-board {
    display: grid;
    grid-template-columns: repeat(9, 40px);
    grid-template-rows: repeat(9, 40px);
    gap: 2px;
    background-color: #ccc;
    width: fit-content;
    margin: 20px auto;
}

.cell {
    width: 40px;
    height: 40px;
    background-color: #fff;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 24px;
    cursor: pointer;
}

.cat {
    color: red;
}

.block {
    background-color: #333;
}