Portfolio Page question

This is my portfolio http://codepen.io/nylara/full/RRrmYB/

I’ve got a white line at the top and bottom of the page that I can’t figure out how to get rid of. Any help would be very much appreciated.

Thanks in advance

Try this:

h2 {
margin-top: 0;

p {
margin-bottom: 0;

It worked. Thank-you!