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An inline frame is marked up as follows:

<iframe src ="html_intro.asp" width="100%" height="300">
  <p>Your browser does not support iframes.</p>

Definition and Usage

The <iframe> tag defines an inline frame that contains another document.

Browser Support

Internet Explorer Firefox Opera Google Chrome Safari
The <iframe> tag is supported in all major browsers.

Differences Between HTML and XHTML


Tips and Notes

Tip: To deal with browsers that do not understand iframes, place the text you want between the opening <iframe> tag and the closing </iframe> tag.

Optional Attributes

DTD indicates in which HTML 4.01/XHTML 1.0 DTD the attribute is allowed. S=Strict, T=Transitional, and F=Frameset.

Attribute Value Description DTD
align left
Deprecated. Use styles instead.
Specifies the alignment of an iframe according to surrounding elements
frameborder 1
Specifies whether or not to display a border around an iframe TF
height pixels
Specifies the height of an iframe TF
longdesc URL Specifies a page that contains a long description of the content of an iframe TF
marginheight pixels Specifies the top and bottom margins of an iframe TF
marginwidth pixels Specifies the left and right margins of an iframe TF
name name Specifies the name of an iframe TF
scrolling yes
Specifies whether or not to display scrollbars in an iframe TF
src URL Specifies the URL of the document to show in an iframe TF
width pixels
Specifies the width of an iframe TF

Standard Attributes

The <iframe> tag supports the following standard attributes:

Attribute Value Description DTD
class classname Specifies a classname for an element TF
id id Specifies a unique id for an element TF
style style_definition Specifies an inline style for an element TF
title text Specifies extra information about an element TF

Event Attributes

The <iframe> tag does not support any event attributes.

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