These tabs are made up of local and external content. Tab 1 and Tab 2 are loading
files tab1.html and tab2.html. Tab 3 and Another Tab are using content that is already
part of this page.
First Tab
I'm the first tab and my content is local. Try clicking tab#2. It's loading remotely.
Tab 2
I am tab 3
Did you know that the children of a TabContainer can be any widget, such as a SplitContainer
or LayoutContainer? The next tab is itself a TabContainer...