.bibcite-sort-link {
  display: inline-block;
}

.bibcite-sort-link.active {
  margin-left: .25rem;
}

.bibcite-sort-link.active::after {
  display: inline-block;
  content: "";
  width: 13px;
  height: 13px;
}

.bibcite-sort-link.link-ascending::after {
  background: url("../img/arrow-asc.png") center;
}

.bibcite-sort-link.link-descending::after {
  background: url("../img/arrow-desc.png") center;
}