This is a new tag introduced in HTML5. The <aside> tag is used to enclose content that is tangentially related to other content; the element may be associated within an article or web page and is typically useful for marking up sidebars. It gives additional information to present that can improve an article. When you use an aside tag within an article tag then the content of the aside tag should be specifically related to that article. When you use an aside tag outside of an article tag then the content of the aside tag must be related to the web site.
Syntax
- <aside
- accesskey="spaced list of accelerator key(s)"
- class="class name(s)"
- contenteditable="true | false | inherit"
- contextmenu="id of menu"
- data-X="user-defined data"
- dir="ltr | rtl"
- draggable="true | false | auto"
- hidden="hidden"
- id="unique alphanumeric identifier"
- itemid="microdata id in URL format"
- itemprop="microdata value"
- itemref="space-separated list of IDs that may contain microdata"
- itemscope="itemscope"
- itemtype="microdata type in URL format"
- lang="language code"
- spellcheck="true | false"
- style="style information"
- tabindex="number"
- title="advisory text"></aside>