#pageTop {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.2s ease, visibility 0.2s ease;
}

#pageTop.is-visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

@media (prefers-reduced-motion: reduce) {
  #pageTop {
    transition: none;
  }
}