<source> Tag in HTML
The <source> tag is a new tag in HTML 5 that's used to represent media resources on a web page by using media elements tags such as <video>, <audio>, and <picture>... here you can explore the full tutorial of <source> tag
Syntax Example of <source> Tag
<audio controls>
<source src="audiourl.mp3" type="audio/mp3" />
</audio>