.ScrollToTop{
  position: fixed;
  right: 50px;
  bottom: 50px;
  width: 50px;
  height: 50px;
  background: white;
  border-radius: 5px;
  display: none;
  opacity: .6;
  border: solid .5px gray;
  background-image: url("/img/ScrollToTop.png");
  background-size: 50%;
  background-repeat: no-repeat;
  background-position: 48%;
}