I have made a custom theme from my client.But sidebar,widget is not showing.I just want to make drop down menu.But when i tried to make menu from widget it shows"url is error".Also don't show any widget.No need to show sidebar.But i want to make a dropdown menu and dropdown category in the header section.If you see this website,i think you will be understand
http://realfirstworldproblems.com
And suggest me.
Thanks