Where i get content for image,audio( mp3, mp4)and video ?....

Question

Which I use in html page

Answer 1

<img>
<audio>
<video>
These are the three tags that you can get source for image, audio, and the video.

Answer 2

see this:
https://developer.mozilla.org/en-US/docs/Learn/HTML/Multimedia_and_embedding/Images_in_HTML
https://developer.mozilla.org/en-US/docs/Web/HTML/Element/video
https://developer.mozilla.org/en-US/docs/Web/HTML/Element/audio
(I hope this will help you)

Answer 3

Bro where I take content