Feedback simple website lay-out

Hi all

i’m starting an opinion articles website and I am making a site with my limited HTML/CSS knowledge. I was just wondering if you had some feedback on the lay-out? How to make it look more professional, modern? I just want a straightforward, clear lay-out with focus on the articles. The menu is floating and when you touch the images you get a little zoom in.

Lay-out: Imgur: The magic of the Internet
Floating menu/animation: Imgur: The magic of the Internet

Do you have any tips or suggestions? Maybe ideas for a great font style, color combinations?

Greetings and thanks in advance!