You’d get 90% of the way there with just font selection, paragraph spacing, and margins. Maybe colors as well.

Butterick’s typography stuff and tufte will carry you through, and then just steal some more specific detailing from sites like this, gwern, xxyxyz etc

I compiled a list of such sites I was planning to steal details from for my own blog, but never actually followed through on, if you care: https://github.com/setr/pollen-site/