How to embed video correctly?

Question

HTML

Hello, first I will describe a small essence of the problem: the customer wants to use the video as the background of the slide, but the problem is that he needs the place where the water drains to not change its position. That is, now the video is stretched to the entire browser window, and, of course, when it is reduced, the video also resizes.

Is there any way to keep the position of the place where the water flows even after resizing the browser window?

Answer 1

Trim around the edges :)

Answer 2

And give a link to people who seem to even know about the main goal of landings.