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HTML img longdesc Attribute


HTML img Tag Reference HTML <img> tag

Definition and Usage

The longdesc attribute specifies the URL of a page that contains a (long) description of the image.

This attribute is used for browsers that does not support images (like text only browsers or non-visual browsers).

The alt text of the image is useful for describing images, however, for longer and more detailed descriptions it is recommended to use the longdesc attribute and a separate page.

Syntax

<img longdesc="URL" />

Syntax Example

<img longdesc="demo_img_longdesc.htm" />

Attribute Values

Value Description
URL The web address of description page.

Possible values:

  • An absolute URL - Is used to navigate to another web site (like longdesc="www.example.com/description.htm")
  • A relative URL - Is used to navigate within a site (like longdesc="description.htm")


Browser Support

Internet Explorer Firefox Opera Google Chrome Safari

None of the major browsers support this attribute. However, it is intended for text-only and non-visual browsers.


Example

Source Output
<img src="demo_img.jpg" 
alt="W3Schools example picture" 
longdesc="demo_img_longdesc.htm" />
W3Schools example picture


Try-It-Yourself Demos

img longdesc attribute example
Specify an URL to a page with a long description of the image.


HTML img Tag Reference HTML <img> tag