Need helps to improvement TYPOGRAPHIC HIERARCHY

Envato Authors Theme Authors
1

Hi
I have been rejected with following issue

  1. Line height it’s not being handle correctly across the item --> http://envato.d.pr/EVd1

  2. TYPOGRAPHIC HIERARCHY: The typographic hierarchy of this item requires additional work. For more information, please read:http://webdesign.tutsplus.com/articles/understanding-typographic-hierarchy--webdesign-11636

Please help me how to fix this issue.
here is the demo link.
http://atlasinfotech.biz/groham/home01.html