body {
    background-color: black;
    color: white;
    font-family: Arial, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.tic-tac-toe {
    display: grid;
    grid-template-rows: repeat(3, 100px);
    grid-template-columns: repeat(3, 100px);
    gap: 5px;
    background-color: black;
    border: 2px solid white;
    padding: 10px;
}

.cell {
    background-color: black;
    border: 2px solid white;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 2rem;
    color: white;
    cursor: pointer;
}

.cell:hover {
    background-color: #444;
}