body {
    margin: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    background-color: #000;
    color: #fff;
    font-family: 'Press Start 2P', cursive;
}

#gameCanvas {
    border: 2px solid #fff;
    background-color: #111;
}

#instructions {
    text-align: center;
    margin-top: 10px;
}