Please look at my @compact bug comment before I post it

I'd be a bit more careful about using an empty attribute data-compact. Traditionally, HTML DTDs defined <ul compact> to mean <ul compact="compact">, but the current HTML spec ( https://html.spec.whatwg.org/#attributes-2 ) assumes an empty value instead. However, we want to stick to the @compact values as defined in full DITA, and this means "yes" or "no". We should better not open the field for any other interpretation, and leave out the empty attribute construct.  f.