At first, thank you for helping me.
I have some issues with this “hack”, ’cause if I use bigger bordered like 40 px instead of 20 px, I hide the elements inside.
Check that :
As you can see in the top and in the bottom, elements are hidden. The space in the top of the logo is lower than the space on his left. And the arrow in the bottom is half hidden.
Same for the menu :
Thank you for reading