Learning buttons

Hi There

I recently picked up godot to and I was wondering why the documentation for buttons works the way it does.

Why does it make a smaller button and not use the bigger one I made?

The small black dot in the top left corner is the button that prints "Hello World" just to see if it works. Im sorry if this is an easy question, im still new.

Photo for reference

image

Thanks in advance guys

How did you make it?