Portfolio Feedback welcome

Just finished my portfolio that i’ve been working on today:

http://codepen.io/Jargallagher/full/wojwoL/

I decided against using a scrolling navigation bar as I didn’t really like the aesthetic on such a small page, as I add more to my portfolio section, and begin filling out the about section/adding more sections I will probably add a sticky navigation that starts at the 'about me’section

I also seem to be having some issues with the buttons staying blue when clicked/after click that I can’t quite figure out how to fix

other then that, the links land to the social sites homepages, just as placeholders for now.