God, this site is awful on mobile. Why on Earth would you think that I want the title of the current paragraph take up half of my screen from the top??
I used a default theme from Github, and then did my best to make it a little more mobile-friendly. However, I wanted to focus on the content and, you know, my actual job, instead of spending hours fixing CSS. Perhaps consider taking that energy and make a pull request with specific improvements to the layout?
Could you use a different theme? Even on my laptop the top bar thing that follows you obstructs like 10% of the page for me. Granted it's because I'm usually zoomed in for the sake of my eyes but I think it's worth fixing.
I went in and killed the relevant CSS - hopefully that makes it a little easier to read?