.module-go-to-top {
  opacity: 0;
  pointer-events: none;
}
body.scrolled .module-go-to-top {
  opacity: 1;
  pointer-events: auto;
  transition: opacity 0.3s ease-in-out;
}
body.scrolled .module-go-to-top:hover {
  opacity: 0.8;
}