[phillipgessert]

I’d add that unsetting justification is not the same as setting it rag right. It’s just surrendering control of it to the reading system, generally considered a positive. Folks pick their app based on what it does for them, and they like that more than whatever we do to circumvent or improve that.

Re:your font declaration, it is harmless enough but won’t do much. Most people won’t have that font installed on their device, but it will fall back on a sensible default.

For ebook, good design usually means “behaves as expected.” It is a cooperative approach (with the reader) that usually manifests as meticulous markup coupled with very minimal css. Whatever is the least you can bear.