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The HTML <aside></aside> element was introduced in HTML5. It defines some content aside from the content it is placed in. This content should be related to the surrounding content. The content could also be placed as a sidebar in an article. Such sections are often represented as sidebars or as inserts; they often contain side explanations like a glossary definition, more loosely related stuff like advertisements, the biography of the author, or in web-applications, profile information or related blog links. This element must not be descendant of an <address> element.


Attributes[]

See Global HTML Attributes and Standard HTML5 Attributes.


HTML example:

Ever heard of The Epcot center?
<aside>
<h4>Epcot Center</h4>
The Epcot Center is a theme park in Disney World, Florida.
</aside> 

Rendering[]

The aside element by itself does not have a visual rendering, other than being a block element. It does however influence the rendering of the <h1> element, see that page for more information.

Typical CSS representation[]

aside {
  display: block;
}

Coding rules[]

The <aside> element belongs to the Flow content category.

See Also[]

External Links[]

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