.toc {
  width: 200px;
  padding: 8px 12px;
  background-color: #f9f9f9;
  font-size: 12px;
  padding-left: 40px;
  padding-right: 20px;
  padding-top: 10px; }
  .toc nav {
    position: sticky;
    top: 8px; }
  .toc ul {
    list-style: none;
    padding-left: 8px;
    margin: 0; }
  .toc > nav > ul {
    padding-left: 0; }
  .toc li {
    margin: 3px 0;
    line-height: 1.3; }
  .toc a {
    display: block;
    text-decoration: none;
    color: #666;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis; }
    .toc a:hover {
      color: #111; }
    .toc a.toc-active {
      color: #111;
      font-weight: 600; }

.toc-heading {
  font-weight: bold;
  margin: 0 0 8px 0; }