body {
    margin: 0;
    background: black;
    color: white;
    text-align: center;
    font-family: Arial, sans-serif;
}

h1 {
    margin-top: 10px;
}

#score {
    font-size: 30px;
    margin-bottom: 10px;
}

canvas {
    border: 2px solid white;
    display: block;
    margin: 0 auto;
    background: black;
}