HTML <img> longdesc Attribute

HTML img Tag Reference HTML <img> tag

Example

Use of the longdesc attribute, to point to a page with a long description of an image:

<img src="w3html.gif" alt="W3Schools.com" longdesc="w3s.txt">

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Definition and Usage

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

The longdesc attribute specifies a URL to a page that contains a long description of an image.

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


Browser Support

Attribute
longdesc Not supported Not supported Not supported Not supported Not supported

Syntax

<img longdesc="URL">

Attribute Values

Value Description
URL A URL to a page that describes the image.

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 img Tag Reference HTML <img> tag

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