Learning Django- Creating Bounding box- Need Help

I am trying to create Django Project in that I am providing function as captured and browse image from live streaming. In that, after capturing image i want a bounding box (box) on image that box size should be editable. How to do this? I tried so many ways but still unable to draw. Box size(height, width) should be given by user, and that box should be moving means position should be editable. I have uploaded how box i want on image.

As much as I’ve understand, this thing should be handled with CSS and JavaScript than Django itself. If there is anything that I’m missing than you can clear it.

Ok Thank you. Using JavaScript can you give me any idea how to do this? or refer any documentation?

I don’t have much knowledge about it, but maybe someone else have done it before.