.top-arrow {
  display: none;
  position: fixed;
  bottom: 20px;
  right: 15px;
  z-index: 9999;
  padding: 1.5rem 1.7rem;
  background-color: #0066CC;
  border: 1px solid #0066CC;
  border-radius: 50%;
}

.top-arrow:before {
  content: '';
  background:url('/sites/default/files/2022-03/top-arrow.png') no-repeat;
  background-size: 25px 25px;
  position:absolute;
  width:25px;
  height:25px;
  margin-left: -12px;
  margin-top: -12px;
}