a.back-to-top-link {
  display: inline-block;
  text-decoration: none;
  cursor: pointer;
}

a.back-to-top-link:hover {
  text-decoration: underline;
}

.block--back-to-top-block,
.block-back-to-top-block {
  text-align: center;
  margin: 20px 0;
}

a.back-to-top-link::before {
  content: '';
  display: block;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 0 6px 6px 6px;
  border-color: transparent transparent #000000 transparent;
  position: relative;
  left: 50%;
  transform: translate(-50%, 0);
}