HTMLSourceElement

TheHTMLSourceElement interface provides special properties (beyond the regularHTMLElement object interface it also has available to it by inheritance) for manipulating<source> elements.

Instance properties

Inherits properties from its parent,HTMLElement.

HTMLSourceElement.height: A number that reflects theheight HTML attribute, indicating the height of the image resource in CSS pixels. The property has a meaning only if the parent of the current<source> element is a<picture> element.
HTMLSourceElement.media: A string reflecting themedia HTML attribute, containing the intended type of the media resource.
HTMLSourceElement.sizes: A string representing image sizes between breakpoints
HTMLSourceElement.src: A string reflecting thesrc HTML attribute, containing the URL for the media resource. TheHTMLSourceElement.src property has a meaning only when the associated<source> element is nested in a media element that is a<video> or an<audio> element. It has no meaning and is ignored when it is nested in a<picture> element.
Note:If thesrc property is updated (along with any siblings), the parentHTMLMediaElement'sload method should be called when done, since<source> elements are not re-scanned automatically.
HTMLSourceElement.srcset: A string reflecting thesrcset HTML attribute, containing a list of candidate images, separated by a comma (',', U+002C COMMA). A candidate image is a URL followed by a'w' with the width of the images, or an'x' followed by the pixel density.
HTMLSourceElement.type: A string reflecting thetype HTML attribute, containing the type of the media resource.
HTMLSourceElement.width: A number that reflects thewidth HTML attribute, indicating the width of the image resource in CSS pixels. The property has a meaning only if the parent of the current<source> element is a<picture> element.