html, body {
    padding: 0;
    margin: 0;
    overflow: hidden;
    user-select: none;
    -moz-user-select: none;
    -khtml-user-select: none;
    -webkit-user-select: none;
    -o-user-select: none;
}
html, body, canvas {
    touch-action: none;
    touch-action-delay: none;
}