I am using dhtmlx tabbar using iframe mode and i create five tabs. I have given some width and height to tabbar but only the first and last tab are of the size that i specify for tabbar. What could be the problem there?



By “tab size” do you mean the size of tab caption area or size of content in tabbar?
If problem occurs with tab captions - please provide code used to init tabbar.
In iframe mode, all tabs use the same iframe element - so size of content area will be the same ( visible part of it depends only on size of content in iframe )