html, body { overscroll-behavior: none; -webkit-user-select: none; user-select: none; }
#gameParent {
    position: fixed;
    top: env(safe-area-inset-top, 0px);
    right: env(safe-area-inset-right, 0px);
    bottom: env(safe-area-inset-bottom, 0px);
    left: env(safe-area-inset-left, 0px);
    width: auto;
    height: auto;
}