@xiee/utils/css/circled-numbers.css

Miscellaneous tools and utilities to manipulate HTML pages

/* Add circled numbers to h2 and TOC items generated by Hugo  */
#TableOfContents, #TableOfContents ~ p:first-of-type { counter-reset: circled-numbers; }
h2:not([class])::before, #TableOfContents > ul > li > ul > li::before {
  counter-increment: circled-numbers;
  content: counter(circled-numbers);
  border-radius: 50%;
  border: 1px dashed #999;
  color: #333;
  background: white;
  display: inline-block;
  min-width: 1.75em;
  line-height: 1.75em;
  margin-right: .5em;
  text-align: center;
  font-size: .8em;
}
h2:not([class])::before {
  vertical-align: bottom;
  color: white;
  border: none;
  background: #999;
}
#TableOfContents > ul > li > ul > li {
  display: inline-block;
}