<aside> element – represents content that is tangentially related to the main content of a given page.
Usage: think in terms of a printed document where such a section of a page might be represented as a sidebar, annotation, or footnote.
Permitted Content: style elements and flow content. The <aside> element must not be a descendant of the <address> element.
Tag omission: both start and end tag must be present.
Example code:
<aside id=”sidebar”>
<form> Search form goes here </form>
<section>
<h3>CSS</h3>
…
</section>
</aside>
<!– end sidebar –>
Example page (opens in a new tab/ window – view source code):
- http://learning-html5.info/examples/BasicWeblogText.html (note: this page has no CSS styling, it is simply intended to show the overall structure of the HTML5 page).
Default display properties: display: block.
Common Attributes: typical global attributes only.
Permitted Parent Elements: any element which can contain phrasing or flow elements.
References: