Article, section, and aside

Use article for a self-contained composition that could make sense on its own.

<article>
  <h2>A winter route around the lakes</h2>
  <p>This route stays on cleared cycle tracks.</p>
</article>

Blog posts, news stories, forum posts, and product cards can be articles.

Use section for a thematic part of a document. It should normally have a heading.

<section>
  <h2>Routes for beginners</h2>
  <p>Start with short, separated paths.</p>
</section>

Do not use section just because you need a wrapper for CSS. If the content has no natural heading or theme, a div may be more honest.

Use aside for content that is related but secondary to the surrounding content:

<aside>
  <h2>Renting a bicycle</h2>
  <p>Most train stations have a rental shop nearby.</p>
</aside>

An aside inside an article relates to that article. An aside beside the page’s main content often acts as a sidebar.

The right question is not “Which element looks right?” These elements have no important default visual difference. Ask what role the content plays.

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