I really like your example:
I usually start my notes with an H1 for the note title (so placed below your red line).
I would also like to have a header in Your Block, so I can fold/unfold Your Block for less clutter, when viewing my note.
I therefore wonder if it conflicts with also having a H1 in the Your Block section?
In other words, does it conflict anywhere if I have two H1’s in one note?
Or should it be a H2 in the You Block section or does it conflict to have an H2 above a H1?
Or should the Your Block section not include a header at all?