I decided I'd like to use Zurb foundation framework within C5 and found some great info (http://www.concrete5.org/documentation/how-tos/developers/creating-a-fresh-foundation-4-theme-for-concrete5/)

It appears to work okay, my only question is, what about the C5 header nav bar for editing while in mobile mode? It's all out of alignment. Has anyone found a way to correcting this. Or am I better just telling clients to only conduct updates and ammendments using their desktop computer.

I have in the past used bootstrap and managed to tweak some of the css to display and alter the C5 nav bar, but I don't really like doing this.