html - 如何使用静态字符串为分层有序列表项编号添加前缀

Question

我可以为每个部分设置一个常量字符串，并且需要保留嵌套 OL 标签的原始层次结构。我需要这样的东西:

1. First section

  1.1. Some text here, and some fruits:
        1.1.1. Apples
        1.1.2. Oranges
  1.2. Some more text here...

2. Second section

  2.1. Some second text here, and some fruits:
        2.1.1. Bannanas
        2.1.2. Mangos
  2.2. Some more second text here...

我可以在其中对部分编号进行硬编码，但所有其他需要通过自动 CSS...

li:not(:last-child) {
	padding-bottom: 9pt;
}
ol ol > li:first-child {
	padding-top: 9pt;
}

/* hierarchical ordering:  */
ol {
	padding-left: 12pt;	
	counter-reset: item
}
li {
  display: block
}
li:before {
  content: counters(item, ".") ". ";
  counter-increment: item
}
section > ol li::before {
	position: relative;
	left:-4pt;
}
/* hard coding section numbers to avoid risks on bad browsers */
#sec1 > ol > li::before  { content: "1." counter(item) "."; }
#sec2 > ol > li::before  { content: "2." counter(item) "."; }
#sec3 > ol > li::before  { content: "3." counter(item) "."; }

<section id="sec1">
  <h1>1. First section</h1>
  <ol>
    <li>Some text here, and some fruits:
      <ol>
        <li>Apples</li>
        <li>Oranges</li>
      </ol>
    </li>
    <li>Some more text here..</li>
  </ol>
</section>

<section id="sec2">
  <h1>2. Second section</h1>
  <ol>
    <li>Some second text here, and some frits:
      <ol>
        <li>Bannanas</li>
        <li>Mangos</li>
      </ol>
    </li>
    <li>Some more second text here..</li>
  </ol>
</section>

注意事项

• 类似于“How to prefix a word in a list number”、“Insert CSS parent section counter for nested lists”和“How can I prefix ordered list item numbers with a static string using CSS?”，但不重复。

• 需要干净的 HTML5 + CSS，没有 Javascript。

• 只需要使用现代 Firefox 和 Chrome 浏览器(不需要 Microsoft)。

Answer 1

我删除了不必要的代码并将 h1s 更改为 h2s。

您的计数器只计算 li 元素。您还需要使用相同的计数器来计算 h2。

了解 how CSS counter-resets create new scopes .

body {
  counter-reset: item;
}
h2:before {
  counter-increment: item;
  content: counter(item) ". ";
}
ol {
  list-style-type: none;
  counter-reset: item;
}
li:before {
  counter-increment: item;
  content: counters(item, ".") ". ";
}

<section>
  <h2>First section</h1>
    <ol>
      <li>Some text here, and some fruits:
        <ol>
          <li>Apples</li>
          <li>Oranges</li>
        </ol>
      </li>
      <li>Some more text here.</li>
    </ol>
</section>

<section>
  <h2>Second section</h1>
    <ol>
      <li>Some second text here, and some fruits:
        <ol>
          <li>Bannanas</li>
          <li>Mangos</li>
        </ol>
      </li>
      <li>Some more second text here.</li>
    </ol>
</section>