HTML img width Attribute

HTML <img> tag

Definition and Usage

The width attribute specifies the width of the image.

The height, and width attributes are set to let the browser know how big the image is, so it can reserve space for the image in the page layout. If these attributes are not set, the site layout will change during loading (while waiting for images to load).

Note: Rescaling images is not good coding practice. Downsizing a large image to fit your site will use more bandwidth than necessary. It is better to manually rescale the image before using it in your website.

Syntax

<img width="length" />

Syntax Example

<a type="text/html">

Attribute Values

Browser Support

The attribute is supported in all major browsers.

Example

Source	Output
<img src="demo_img.jpg" alt="W3Schools example picture" width="150" />

Note: As you can see in the example, if the width attribute is set by itself (without setting the height attribute), the image will be properly rescaled. However, if the height attribute is set, and the width attribute is changed, the image will be stretched.

Try-It-Yourself Demos

img width attribute example
Specify the width of an image.

HTML <img> tag

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