.scroll-to-top {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  display: none;
  width: 51px;
  height: 51px;
  text-align: center;
  color: #fff;
  background: var(--bs-primary);
  line-height: 46px;
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 9999;
}