Hey "This guy" here, any suggestions on how to style them better? My blog is still a work in progress, but I am always looking for ways to improve things.
The advice to read Practical Typography is good, but ironically not super practical. It would be a lot of time invested for a small practical benefit in this narrow situation.
Personally, I think you could increase the contrast between text and whitespace more (i.e. use a darker font color, maybe #222), shrink the font-size a little as the other comment said, and most importantly, set a max-width so that the text doesn't expand arbitrarily when viewed on larger screens. 700 or 900px feels nice to me.