L.1.3 Main Document Story
The contents of the main document story—the only story that is required for a WordprocessingML document to be conformant—are encapsulated within the body element. The content of the main document body is a collection of block-level structures, which are those WordprocessingML elements that can contain and/or be sibling elements with a WordprocessingML paragraph.
Within the document body, the valid set of block level content, as defined by the WordprocessingML schema, is:
Paragraphs Tables Custom markup (custom XML, structured document tags) Section properties Annotations (comments, revision markers, range permission markers) Alternate format chunks
Each of these block-level content constructs (the ‘building blocks’ of WordprocessingML) is defined in the following subclauses.