<h1>–<h6>:HTML 区域标题元素

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HTML <h1><h6> 标题 (Heading) 元素呈现了六个不同的级别的标题,<h1> 级别最高,而 <h6> 级别最低。

内容类别 (en-US) 流式内容, 标题内容,可触知的内容。
允许内容 短语内容 (en-US)
标签省略 不允许,开始标签和结束标签都不能省略。
允许的父元素 任何接受流内容的元素;不要把它作为 <hgroup> 元素的子元素,这种做法已经被废弃了。
允许的 ARIA roles tab, presentation
DOM 接口 HTMLHeadingElement (en-US)



align 属性已废弃;不要继续使用它。


  • 用户代理可以使用标题信息,例如自动构建文档的目录。
  • 不要为了减小标题的字体而使用低级别的标题, 而是使用 CSS font-size 属性。
  • 避免跳过某级标题:始终要从 <h1> 开始,接下来依次使用 <h2> 等等。
  • 使用 <section> 元素时,为了方便起见,你应该考虑避免在同一个页面上重复使用 <h1>,<h1> 应被用于表示页面的标题,其他的标题当从 <h2> 开始。在使用 section 时,应当为每个 section 都使用一个 <h2>。详情请参考 Defining sections (en-US) in [Page not yet written] (en-US)









<h1>Heading elements</h1>
<p>Some text here...</p>

<h3>Example 1</h3>
<p>Some text here...</p>

<h3>Example 2</h3>
<p>Some text here...</p>

<h2>See also</h2>
<p>Some text here...</p>




A common navigation technique for users of screen reading software is jumping from heading to heading to quickly determine the content of the page. Because of this, it is important to not skip one or more heading levels. Doing so may create confusion, as the person navigating this way may be left wondering where the missing heading is.


<h1>Heading level 1</h1>
<h3>Heading level 3</h3>
<h4>Heading level 4</h4>


<h1>Heading level 1</h1>
<h2>Heading level 2</h2>
<h3>Heading level 3</h3>


Headings may be nested as subsections to reflect the organization of the content of the page. Most screen readers can also generate an ordered list of all the headings on a page, which can help a person quickly determine the hierarchy of the content:

  1. h1 Beetles
    1. h2 Etymology
    2. h2 Distribution and Diversity
    3. h2 Evolution
      1. h3 Late Paleozoic
      2. h3 Jurassic
      3. h3 Cretaceous
      4. h3 Cenozoic
    4. h2 External Morphology
      1. h3 Head
        1. h4 Mouthparts
      2. h3 Thorax
        1. h4 Prothorax
        2. h4 Pterothorax
      3. h3 Legs
      4. h3 Wings
      5. h3 Abdomen

When headings are nested, heading levels may be "skipped" when closing a subsection.

Labeling section content

Another common navigation technique for users of screen reading software is to generate a list of sectioning content and use it to determine the page's layout.

Sectioning content can be labeled using a combination of the aria-labelledby and id attributes, with the label concisely describing the purpose of the section. This technique is useful for situations where there is more than one sectioning element on the same page.


  <nav aria-labelledby="primary-navigation">
    <h2 id="primary-navigation">Primary navigation</h2>
    <!-- navigation items -->

<!-- page content -->

  <nav aria-labelledby="footer-navigation">
    <h2 id="footer-navigation">Footer navigation</h2>
    <!-- navigation items -->

In this example, screen reading technology would announce that there are two <nav> sections, one called "Primary navigation" and one called "Footer navigation". If labels were not provided, the person using screen reading software may have to investigate each nav element's contents to determine their purpose.



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