toc dot

/* 目次 */
.table-of-contents{
  margin:24px 0;
  width: 70%;
  font-size: 0.9em;
  background: #e5e5e5;
  border: 1px solid #ccc;
  padding: 2em;
  counter-reset: toc;
  list-style-type: none;
}

.table-of-contents:before{
  margin: 0 auto;
  content: "目次";
  font-size: 1.2em;
}

.table-of-contents ul{
  margin-bottom: 0.5em;
  counter-reset: toc;
  list-style-type: none;
}

.table-of-contents li:before {
  counter-increment: toc;
  content: counters(toc, ".") " ";
}

.table-of-contents li,
.table-of-contents ul{
  padding: 0 0 0 1em;
}