I finished the documentation project: https://codepen.io/0rAX0/full/wReYLK
I like it a lot but it is not responsive. The sidebar should wrap on smaller screens.
The sidebar moves to the top on small screens! I just tested it.
It does wrap on smaller screens but you should also handle the others that are slightly bigger than that. People can still use the overflow, it’s up to you whether you want to do something about it or not.
Ah, yes, I targeted a few widths but it’s broken in between. I also discovered some other issue. Thank you @PaoloDiBello