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The HTML <aside> element represents a section of the page with content connected tangentially to the rest, which could be considered separate from that content. These sections are often represented as sidebars or inserts. They often contain the definitions on the sidebars, such as definitions from the glossary; there may also be other types of information, such as related advertisements; the biography of the author; web applications; profile information or related links on the blog.

Usage notes:

  • Do not use the <aside> element to tag parenthesized text, as this kind of text is considered part of the main flow.
Content categories Flow content, sectioning content, palpable content.
Permitted content Flow content.
Tag omission None, both the starting and ending tag are mandatory.
Permitted parent elements Any element that accepts flow content. Note that an <aside> element must not be a descendant of an <address> element.
DOM interface HTMLElement

Attributes

This element only includes the global attributes.

Examples

<article>
  <p>
    The Disney movie <em>The Little Mermaid</em> was
    first released to theatres in 1989.
  </p>
  <aside>
    The movie earned $87 million during its initial release.
  </aside>
  <p>
    More info about the movie...
  </p>
</article>

Specifications

Specification Status Comment
WHATWG HTML Living Standard
The definition of '<aside>' in that specification.
Living Standard  
HTML5
The definition of '<aside>' in that specification.
Recommendation  

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support 5 4.0 (2.0) 9.0 11.10 4.1
Feature Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support 2.2 4.0 (2.0) 9.0 11.0 4.2

See also

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 最近更新: ggbaker,