#game-board {
    display: grid;
    grid-template-columns: repeat(4, 100px);
    grid-template-rows: repeat(5, 100px);
    gap: 5px;
    width: fit-content;
    margin: 50px auto;
}

.block {
    background-color: #ccc;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 24px;
    cursor: pointer;
}