files/en-us/web/api/htmlsourceelement/media/index.md
{{APIRef("HTML DOM")}}
The media property of the {{domxref("HTMLSourceElement")}} interface is a string representing the intended destination medium for the resource. The value is a media query, which is a comma separated list of media-types, media-features, and logical operators.
It reflects the media attribute of the {{HTMLElement("source")}} element.
A string.
<video>
<source
id="el"
src="largeVideo.mov"
type="video/quicktime"
media="screen and (width >= 600px)" />
</video>
const el = document.getElementById("el");
console.log(el.media); // Output: "screen and (width >= 600px)"
el.media = "(width >= 800px)"; // Updates the media value
{{Specifications}}
{{Compat}}