I have a typical requirement, i want to have a thick line separating the tabs of the tabbar and the content area in Tabbar.
unfortunately, tabbar doesn’t allow to do that.
The tabbar can be initialized without content area - there will be only tabs. Usind onSelect event handler you can reload any other container of the page. And in this case you can place any html below tabs (tabbar):
the sample is dhtmlxTabbar/samples/tabs_orientation/tab_all.html