body {
    margin: 0;
    padding: 0;
    overflow: hidden;
    width: 100vw;
    height: 100vh;
}

#gameContainer {
    position: relative;
    width: 100vw;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

#canvas {
    display: block;
    position: relative;
    z-index: 1;
}


#background {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%; 
    height: 100%;
    background-image: url("images/background.jpg");
    background-size: cover;
    z-index: 0;
}