How can I reduce the space below the header?

I’m using the Hifidel design, and there is a huge gap at the bottom of the header section that I cannot figure out how to eliminate or reduce.  I’m in the process of building my site at http://capitalmemoirs.com/, and I have reduced all the space at the top of the body of the pages, but there is still a large gap between the body and the header content because of this large empty space at the bottom of the header section.  If there is no way to reduce it using the built-in options, can you point me to where and what specifically i can edit in the code files to shrink this space?  Thank you so much for any help you can provide.