Sorry but we do not understand. How exactly you get 0px of subheader height? Can you remove this custom css so we can check what is exactly happening with your subheader?
Ok, thanks. We did checked your site now and found the reason. You are using Empty header style which does not have subheader. This is how Empty style works. If you want to get subheader, you should use different header style.
Comments
but you have already Subheader on this page what you can see on http://pasteboard.co/2zkdYxdw.png