Why does the Layer size have a very large width size?

Question

css

I'm trying to reduce Composition time for a website. I see that some layers have a larger width than CSS.
Here is a screenshot
How can I fix this?
Tried to set rigid widths and heights for elements, doesn't work.
I found an approximately similar problem on stackoverflow
https://stackoverflow.com/questions/38203071/new-c... I
also noticed that the browser creates these layers because of the z-index (logically, of course, the new layer is the same). But when you remove the z-index, the layer still remains.
Maybe this is normal, because I put the will-change element on the #fullpage. And perhaps the browser has such a procedure for placing all elements on a separate layer.

Answer 1

it is difficult to advise something when the layout is not visible