Lots of extra space in header on mobile only

Site: http://www.richcosh.com
Theme: Creative Portfolio by Dessign

On the mobile version of my site, I get a bunch of blank white space that pushes my header image down pretty far. I would like the mobile menu (3 horizontal bars) to appear inline with the "i am rich" header. I tried adding css targeting @mediascreen but it seemed to just be overwritten.

Please feel free to access the backend if need be, I give permission