body {
    background: #23272f;
    color: #fff;
    font-family: Arial, sans-serif;
    text-align: center;
    margin: 0;
    padding: 0;
}

h1 {
    margin-top: 30px;
    margin-bottom: 10px;
    font-weight: 400;
}

#pongCanvas {
    background: #11151c;
    display: block;
    margin: 0 auto 30px auto;
    border: 3px solid #555;
    border-radius: 8px;
    box-shadow: 0 0 16px #000;
}