Ordered lists with counter numeration like 1.1.1, 1.1.2 #css

ol-counter.css

ol {
  list-style-type: none;
  counter-reset: item;
  margin: 0 0 15px;
  padding: 0;
}

ol > li {
  display: table;
  counter-increment: item;
  margin-bottom: 0.6em;
}

ol > li::before {
  content: counters(item, '.') '. ';
  display: table-cell;
  padding-right: 0.6em;
}

li ol > li {
  margin: 0;
}

li ol > li::before {
  content: counters(item, '.') ' ';
}