I don't think it's possible to summarize the rules any further (besides dropping the parenthetical) without causing more people to just read the summarized summarized version and think they've understood all the rules and go on to break some rules. and there's a certain charm to the persuasion-style sidebar we have i wanna preserve lol

On the formatting: I'm very keen on preserving the semantic formatting of HTML. HTML without the style attribute is really only supposed to tell you the relation between the elements instead of styling things. It lays out how the page is organized so any client/user may decide how to customize that layout themselves if they want to. Replacing semantics with styling removes that semantic meaning and in certain cases can make it harder for screenreaders. Here, the semantics have to be inferred from the decoration.

But thanks for your time!