body {
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #f0f0f0;
}

#game-board {
    border: 0.5px solid rgb(187, 181, 181);
    box-shadow: 0 0 15px rgba(0, 0, 0, 0.4);
    background-color: #ddd;
    padding: 20px;
    border-radius: 2px;
    text-align: center;
    font-size: 20px;
}

.cell {
    width: 40px;
    height: 40px;
    border: 2px solid #ccc;
    display: inline-block;
    text-align: center;
    vertical-align: middle;
    font-size: 16px;
    background-color: #eee;
    cursor: pointer;
    margin: 0;
    line-height: 40px;
    user-select: none;
}

.cell:hover {
    background-color: #ddd;
}

.cell.mine {
    background-color: #ff5555;
    color: #fff;
}

.row {
    clear: both;
    text-align: center;
}

button {
    margin-top: 20px;
    padding: 12px 24px;
    font-size: 18px;
    cursor: pointer;
    background-color: #4caf50;
    color: #fff;
    border: none;
    border-radius: 2px;
    transition: background-color 0.3s;
}

button:hover {
    background-color: #45a049;
}