寫一段項目列表

 <ul class="list">
    <li>one</li>
    <li>two</li>
    <li>three</li>
  </ul>

.list {
    counter-reset: num;
    list-style-type: none;
}

.list > li::before {
    counter-increment: num;
    content: counters(num, "") ". ";
}

.list > li::after {
    content: counters(num, "");
}

效果：

自定義符號列表