Fixed left vertical navigation layout - CSS and Customizer only

Thanks Tom !
It works perfectly ! :)
Indeed, we just discovered the New Site Library, it will help us in the future for sure...
But for this project, we'll use the code you provided as it works

Awesome, no problem :)

Hi there,

I'm trying to acheive something similar but I want to put he secondary nav menu into a fix menu on the left side.

I don't want to use the sidebar as I need that for other content.

I've tried a few CSS variants but can't seem to get it right.

I'm using GP premium.

Hi there,

i provided this solution using the Slideout navigation:

https://generatepress.com/forums/topic/about-vertical-menus/#post-811871

If you need more detailed help it would be better to raise a new topic.