<source>The <source> element sets a media resource for the <picture>, <video>, and <audio> elements.media-elementsMedia elementswidely2015-07-292018-01-29https://html.spec.whatwg.org/multipage/embedded-content.html#the-picture-elementhttps://developer.mozilla.org/docs/Web/HTML/Reference/Elements/sourcehtml.elements.sourcehtml.elements.source.heighthtml.elements.source.mediahtml.elements.source.srchtml.elements.source.typehtml.elements.source.widthhttps://nowyoucanuse.com/features--source.html