body {
    font-family: Arial, Helvetica;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    height: 100vh;
    margin: 0;
    background-color: #000000;
    color: #ffffff;
    padding: 20px;
    box-sizing: border-box;
}


.container {
    text-align: center;
}

table.board {
    box-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
    border-collapse: collapse;
    background-color: #000000;
    margin-top: 20px;
    border-radius: 5px;
    overflow: hidden;
}

table.board td {
    width: 120px;
    height: 120px;
    padding: 20px;
}

table.board img {
    width: 100%;
    height: 100%;
}

table.board tr td {
    border: 2px solid #ffffff;
    font-size: 40px;
    text-align: center;
    font-weight: bold;
}

p.turn {
    display: inline-block;
    border: 2px dotted grey;
    padding: 5px;
}

#player-turn {
    font-size: 17px;
    font-weight: bold;
}

.x:before {
    content: 'X';
    color: #ffffff;
}

.o:before {
    content: 'O';
    color: #ffffff;
}

@media screen and (max-width: 600px) {
    body {
        align-items: flex-start;
    }

    table.board {
        border-radius: 5px;
        margin-top: 10px;
    }
}