Aside

Semantic reference for <aside>.

Usage

html

<aside>
  <h3>Related</h3>
  <p>Tangentially related content like a sidebar or pull quote.</p>
</aside>

The <aside> element represents content indirectly related to the main content — sidebars, pull quotes, or related links.

Accessibility

Creates a complementary landmark role automatically.
Use aria-label or aria-labelledby when multiple asides appear on the same page.