Menu CSS Classes

Hello Everybody,
I have a question about Erweiteres Menu plugin. I want to change background color of SALE menu. But there is a no have any textbox or changing possibilities for Menus css classes. If I add manually my SALE menu this is fixing my problem, but this time submenu not working…
So, what can I do about this?
Thanks for interesting.

 

Maybe you have changed the background colour for the class .menu–container or .item–level-0? You might want to change it for .advanced-menu instead.