.vtex-store-components-3-x-backToTopButtonContainer {
  border-bottom: 3.125rem;
  transition: all 0.3s ease-in-out;
}
.vtex-store-components-3-x-backToTopButtonHidden {
  overflow: hidden;
  height: 0;
  opacity: 0;
}
.vtex-store-components-3-x-backToTopButtonActive {
  height: auto;
  opacity: 1;
}