html.overlay-scroll-locked,
  body.overlay-scroll-locked{overflow:hidden!important;overscroll-behavior:none!important}
  body.overlay-scroll-locked{position:fixed!important;width:100%!important;left:0!important;right:0!important}
  .helpOverlay.show{overscroll-behavior:contain;touch-action:none}
  .helpOverlay.show .helpDialog{overscroll-behavior:contain;-webkit-overflow-scrolling:touch;touch-action:pan-y}