easy blogging scroll issue

I have multiple customized menu items inserted in easy blogging. The black background doesn’t quite fit the end of the menu items, kind of like capri pants that just never reach your ankles.

Chrome browser and OSX on a desktop computer (not to be confused with my other scroll issue from a mobile browser (https://premium.wpmudev.org/forums/topic/easy-blogging-scroll-for-mobile-theme).

How do I fix?