Animation overlaps LeftSidebar, how to fix?

Question

css

https://github.com/AlexeyProjects/AlexeyProjects.g...

With the width of the mobile phone, when you open the left sidebar and scroll down, the animation that starts to work overlaps this sidebar, but then gets up as it should at the end, tried to fix it through z- index failed.
I use Wow and my animation

The very moment.

Answer 1

what exactly could not be solved through z-index?
you set your menu (.blockstart-header__nav-bar) to a large z-index and there is no problem