How to implement an overlay effect on scrolling?

Question

css

There are several divs, for example, five divs arranged one after the other vertically.

It is necessary that when the page is scrolled, div1 remains motionless, and div 2 is superimposed on it, div 3 is superimposed on div 2, and so on.

Explain, please, on the fingers, I'm completely new, and I don't even know what this effect is called, so I'm not sure about effective Google.

Answer 1

Something like this ? Demo .