revert CSS change to top-nav
revert CSS change to top-nav

alpha721/WikiEduDashboard,alpha721/WikiEduDashboard,KarmaHater/WikiEduDashboard,Wowu/WikiEduDashboard,alpha721/WikiEduDashboard,WikiEducationFoundation/WikiEduDashboard,sejalkhatri/WikiEduDashboard,WikiEducationFoundation/WikiEduDashboard,majakomel/WikiEduDashboard,majakomel/WikiEduDashboard,feelfreelinux/WikiEduDashboard,Wowu/WikiEduDashboard,KarmaHater/WikiEduDashboard,WikiEducationFoundation/WikiEduDashboard,WikiEducationFoundation/WikiEduDashboard,KarmaHater/WikiEduDashboard,sejalkhatri/WikiEduDashboard,Wowu/WikiEduDashboard,majakomel/WikiEduDashboard,sejalkhatri/WikiEduDashboard,feelfreelinux/WikiEduDashboard,sejalkhatri/WikiEduDashboard,WikiEducationFoundation/WikiEduDashboard,majakomel/WikiEduDashboard,feelfreelinux/WikiEduDashboard,KarmaHater/WikiEduDashboard,Wowu/WikiEduDashboard,alpha721/WikiEduDashboard,sejalkhatri/WikiEduDashboard,feelfreelinux/WikiEduDashboard