Maximenu config like demo tabs

j3.bikes4you.eu

please give me an admin access so that I can check your settings
www.joomlack.fr/en/contact

I send you the details

as you can see in the attached file :
1/ set the fullwidth on the parent item (level 1)
2/ set the column width on the first submenu (level2) = 20% column width
3/ set the sub-submenu width on the parent level 2 item = 80% submenu width

Thank you for great support ced1870!
I saw it and it's great!
I will test it right now!
You are the best!

Hi again ced,

It's working with this percent but today I saw other problem.
When I mark some submenu(left column) there are other submenus in the right(white space) but when I mark other submenu(left column), this submenus on right(white space) are still there and don't dissapear.
Can I make this (white space) as your demo to slide up right column (white space) only when I mark submenu(in left column)?