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    The HTML <aside> element represents a section of the page with content connected tangentially to the rest, which could be considered separate from that content. These sections are often represented as sidebars or inserts. They often contain the definitions on the sidebars, such as definitions from the glossary; there may also be other types of information, such as related advertisements; the biography of the author; web applications; profile information or related links on the blog.

    Usage notes:

    • Do not use the <aside> element to tag parenthesized text, as this kind of text is considered part of the main flow.


    This element only includes the global attributes.


        The Disney movie <em>The Little Mermaid</em> was
        first released to theatres in 1989.
        The movie earned $87 million during its initial release.
        More info about the movie...


    Specification Status Comment
    WHATWG HTML Living Standard
    The definition of '<aside>' in that specification.
    Living Standard  
    The definition of '<aside>' in that specification.

    Browser compatibility

    Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
    Basic support 5 4.0 (2.0) 9.0 11.10 4.1
    Feature Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
    Basic support 2.2 4.0 (2.0) 9.0 11.0 5.0 (iOS 4.2)

    See also

    Document Tags and Contributors

    Contributors to this page: teoli
    Last updated by: teoli,