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IFrame width Property

❮ IFrame Object

Example

Change the width of an iframe:

document.getElementById("myFrame").width = "400";
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Definition and Usage

The width property sets or returns the value of the width attribute in an iframe element.

The width attribute specifies the width of an iframe.

Tip: Use the height property to set or return the value of the height attribute in an iframe.


Browser Support

Property
width Yes Yes Yes Yes Yes

Syntax

Return the width property:

iframeObject.width

Set the width property:

iframeObject.width=pixels

Property Values

Value Description
pixels The width in pixels (like "100px" or just "100")

Technical Details

Return Value: A String, representing the width of the iframe, in pixels

More Examples

Example

Return the width of an iframe:

var x = document.getElementById("myFrame").width;

The result of x will be:

250
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Example

Change the height and width of an iframe:

document.getElementById("myFrame").height = "400";
document.getElementById("myFrame").width = "400";
Try it Yourself »

Related Pages

HTML reference: HTML <iframe> width attribute


❮ IFrame Object