HTML iframe longdesc Attribute
 HTML <iframe> tag
Definition and Usage
The longdesc attribute specifies the URL of a page that contains a (long)
description of the frame.
This attribute is used for browsers that does not support frames (like text
only browsers or non-visual browsers).
The text between the <iframe> and </iframe> tag is a useful describing frame pages, however, for longer and
more detailed descriptions it is recommended to use the longdesc attribute and a
separate page.
Syntax
Syntax Example
<iframe longdesc="iframe_longdesc.htm">
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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
Major browsers do not use this attribute in any way. However,
search engines and non-visual browsers may use this attribute to get information
about the iframe.
Example
| Source |
Output |
<iframe src="demo_iframe.htm"
longdesc="demo_iframe_longdesc.htm">
</iframe>
|
|
Try-It-Yourself Demos
iframe
longdesc attribute example
Set a description page for the iframe.
HTML <iframe> tag
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