ID:SPEC-186Status:accepted
A content model reads groups, nested blocks and trailing parts, and reports what is missing
A content model reads groups, nested blocks and a trailing part, and reports what is missing (SPEC-186); section's header grammar is declared with it. On that, quotations get roles a theme styles, instead of looks an author names (SPEC-185): a quotation, a featured quotation (pullquote), an excerpt and an epigraph, each with one shared attribution.
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