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The aside element (<aside>) indicates content that is only tangentially related to the rest of the content.

Overview Table

DOM Interface

The aside element may be used for:

  • pull quotes
  • sidebars
  • advertising
  • groups of nav elements

Or any other content that is considered separate from the main content of the page.


The following example shows how an aside is used to mark up background material on Switzerland in a much longer news story on Europe.

 <p>Switzerland, a land-locked country in the middle of geographic
 Europe, has not joined the geopolitical European Union, though it is
 a signatory to a number of European treaties.</p>

Related specifications

HTML 5.1
W3C Working Draft
W3C Recommendation