Question about styles

[Parker Clack]

I understand with vBulletin that when you have a parent style then the child styles inherit what the parent has. The issue I have having is that when I go into my parent style and change a template that I also have in the child style the changes are not transferred to the child style. The changes are only made to the parent template. How do I set up the styles so that when I make a change in x template in the parent style that x template in the child style gets those same changes?

Thanks,
Parker