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HTML <iframe> longdesc Attribute

HTML iframe Tag Reference HTML <iframe> tag

Example

Point to a page with a long description of the content of the <iframe>:

<iframe src="/default.asp" width="200" height="200" longdesc="w3s.txt">
  <p>Your browser does not support iframes.</p>
</iframe>

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Browser Support

Internet Explorer Firefox Opera Google Chrome Safari

The longdesc attribute is not supported by any of the major browsers.

Definition and Usage

The longdesc attribute specifies an URL to a page that contains a long description of the content of an <iframe>.

Note: The longdesc attribute is so poorly supported that it should not be used. To offer a long description of an <iframe> (if necessary), simply create a link (that is visible to anyone) to a page with the description.

Syntax

<iframe longdesc="URL">

Attribute Values

Value Description
URL An URL to a page that describes the content of an <iframe>.

Possible values:

  • An absolute URL - points to another web site (like longdesc="http://www.example.com/description.txt")
  • A relative URL - points to a file within a web site (like longdesc="description.txt")

HTML iframe Tag Reference HTML <iframe> tag
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