HTML width attribute

width attribute represents the horizontal dimension of the media, iframe, image or video.

<img src="files/web.png" width="100%" height="400">
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Attribute values

All possible values of accept attribute

The value of width attribute is a positive integer. By default, the unit of width is pixels. 400 means 400px.

CSS properties may also be applied to define the width.

<img src="URL" style="width:100%; height:200px;">

The tags that support accept attribute

<embed> tag: It embeds external resources such as image, HTML page.; <embed src="URL" width="100%" height="300">
<iframe> tag: iframe represents a browsing context to browse the content.; <iframe src="URL" style="width:100%; height:200px;"> </iframe>
<img> tag: img tag adds an image in the page. img element supports the width attributes.
<video> tag: video tag adds an image in the page. width defines horizontal dimension.; <video src="URL" height="500" width="100%"> </video>