body {
    margin: 0;
    background-color: black;
    color: white;
    font-family: sans-serif;
}

#hud {
    position: absolute;
    right: 20px;
    top: 20px;
    z-index: 10;
}

canvas {
    display: block;
    margin: 0 auto;
    background-color: black;
}