body {
    background: #222;
    color: #fff;
    text-align: center;
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
}

h1 {
    margin-top: 20px;
    margin-bottom: 10px;
    font-weight: normal;
}

#pongCanvas {
    background: #000;
    display: block;
    margin: 0 auto;
    border: 4px solid #fff;
    box-shadow: 0 0 32px #fff3;
}