For the main website I have a menu at the top with child pages in drop downs. This works for the non-mobile size menu of a fluid site. When at a smaller size my theme changes to a drop down box style menu with everything listed. Problem is with child pages in the menu it is a very cluttered menu and no focus on the main navigation pages. All child pages have links on main page for each parent menu item. Is there a way to remove child pages from the menu on mobile size format and keep them on the standard menu?