Gap on pages between first row and menu bar

Hi

I have this annoying grey area between my menu bar and my content section of my pages. How can i get rid of it? I have tried so much and i can’t find anything that will work. This is happening on all of my pages on my website, which is http://wonderstruckfawns.com .

Please let me know what i can do to get rid of this.

Thanks, Paige.