Remove space between menu and post/pages

Hello😄

I want to remove the space between the menu and the contant in post an pages. When i try to find out it looks like the containers name is: div.inside-header

Here is one of the posts:
https://frilynt.no/profesjonelt-kurs-makeup-scene-film/

Is it possible tu use CSS to remove this space?

I am not good at this, so thats wy i ask. I cannot see that this container is used for anyting.

I use GenradePress and Elementor Pro