body {
    font-family: Arial, sans-serif;
    background: #111;
    color: #fff;
    margin: 0;
    padding: 0;
    text-align: center;
}

header {
    background: #222;
    padding: 20px 0;
}

.scoreboard {
    margin-top: 40px;
}

.score {
    font-size: 80px;
    font-weight: bold;
    margin-top: 10px;
}