.scrollup {
  width: 40px;
  height: 40px;
  position: fixed;
  bottom: 90px;
  right: 50px;
  z-index: 10;
  display: none;
  text-indent: -9999px;
  background: url('../../img/scrollUp/up-arrow.svg') no-repeat;
  background-size:cover;
}