html {
    overflow: hidden;
    touch-action: none;
    content-zooming: none;
}

body {
    position: absolute;
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    background: #000;
    overflow: hidden;
}

canvas {
    width: 100%;
    height: 100%;
    background: #000;
    position: absolute;
}