Use a grid for expanded navigation on small devices
Use a grid for expanded navigation on small devices

This gives us a less random layout which is easier to use.

jrjohnson/frontend,thecoolestguy/frontend,thecoolestguy/frontend,dartajax/frontend,djvoa12/frontend,djvoa12/frontend,ilios/frontend,dartajax/frontend,jrjohnson/frontend,ilios/frontend