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HTML: <iframe> width property

This article introduces the HTML iframe width property, which specifies the width of <iframe> in pixels. Online examples demonstrate how to use the HTML iframe width property, browser compatibility, syntax definition, and detailed information about its attribute values.

　HTML <iframe> tag

Online Example

specified height480-pixel, width of280-pixel<iframe>:

Example

<!DOCTYPE　html>
<html>
<head>
<title>HTML:<iframe>　width　property　-　Basic Tutorial Website oldtoolbag.com</title>
<body>
<iframe src="/" width="480" height="280">
<p>Your browser does not support iframes.</p>
</iframe>
</body>
</html>

Test and see ‹/›

Browser Compatibility

IEFirefoxOperaChromeSafari

All major browsers support the width attribute.

Definition and Usage

The width attribute of HTML specifies the width of <iframe> in pixels.

HTML 4.01 and HTML5differences between

In HTML 4.01In, the width can be defined in pixels or as a percentage of the containing element. In HTML5In, this value must be specified in pixels.

Syntax

<iframe width="pixels">

Attribute Value

Value	Description
pixels	Width in pixels (for example "200px" or just "200").

　HTML <iframe> tag

HTML: <template> tag