This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The width property of the HTMLEmbedElement interface returns a string that reflects the width attribute of the <embed> element, indicating the displayed width of the resource in CSS pixels.
A string indicating the displayed width of the resource in CSS pixels.
<embed id="el" width="800" height="600" />
const el = document.getElementById("el");
console.log(el.width); // Output: '800'
| Specification |
|---|
| HTML> # dom-dim-width> |
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Opera | Safari | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | WebView Android | WebView on iOS | |
width |
1 | 12 | 1 | ≤12.1 | 3 | 18 | 4 | ≤12.1 | 1 | 1.0 | 4.4 | 1 |
HTMLCanvasElement.widthHTMLIFrameElement.widthHTMLImageElement.widthHTMLObjectElement.widthHTMLSourceElement.widthHTMLVideoElement.width
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https://developer.mozilla.org/en-US/docs/Web/API/HTMLEmbedElement/width