body {
    /* background-color: white; */
    background-color: black;
    /* leave it to hide the scrollbars */
    overflow: hidden;
    margin: 0;

    /* margin: 0; */
    position: fixed;
    width: 100%;
    height: 100%;
}

canvas {
    /* image-rendering: pixelated; */
    padding: 0;
    margin: auto;
    display: block;
    background: black;
    /* width: 100%; */
    /* height: 100%; */
}

#save {
    z-index: 100000;
    position: absolute;
    bottom: 2%;
}