body {
    margin: 0;
    background-color: hotpink;
    display:flex;
    justify-content:center;
    background-image: url('balloons.avif');
    background-size: cover;
    background-repeat: no-repeat;
}

#gameCanvas {
    background-color: hotpink;
    border: 1px solid black;
    background-image: url('gas.png');
    background-repeat: no-repeat;
    # background-position: bottom -20px right;
    # background-size: 20%;
    margin-top:20px;
}