What is the best way to make an animation of a circle expanding from the center inside which is another page?

Question

css

There is a block with content, when we hover from the center, the circle inside which has other content begins to expand.
Made on pure css, with positioning and overflow. The problem is that because of the excessive nesting of absolute elements and centering, everything starts to tremble. Are there other ways to do this?
the second block is here
romanberezhnov.esy.es/DKTeamPro.ru

Answer 1

Try to remove excessive nesting, test on something simple. Black block, white block and that's it. Then gradually complicate the structure. So catch the place that causes trembling.

Answer 2

Try replacing resizing with transform: scale();