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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>:

Try it yourself »

Browser Support

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

Definition and Usage

The <iframe> longdesc attribute is not supported in HTML5.

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

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")

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