Making a TAB View the full width of the View Controller

I am essentially new to XCode Interface Builder.

I have placed a Tab View onto my View Control and I want it to take the full size of the View Control so that when I resize the window the Tab control will also resize.

At the moment it is just stuck as a small rectangle in the middle of the View.

I am using latest XCode.
Answered by chuckie in 659956022
Worked it out. Constraints.
Accepted Answer
Worked it out. Constraints.
Making a TAB View the full width of the View Controller
 
 
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