html,body {
    position:fixed !important;;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    display:inline-block;
    justify-content: center;
    align-items: center;
    margin: 0;
    padding: 0;  
    overflow:hidden;
}
canvas {
    position:fixed !important;;
    object-fit: contain;
    max-height: 100%;
    max-width: 100%;
    display:inline-block;
    touch-action:none;
    image-rendering:pixelated;
}