Many FrameMaker documents have a logical hierarchical structure, even though FrameMaker does not enforce any kind of structure. For example, this document is organized with paragraph tags such as: Chapter, 1Heading, and 2Heading. By convention, the writers know that a 2Heading is subordinate to a 1Heading, which is subordinate to a Chapter, and the writers enforce that structure in the document. HTML is hierarchical, in contrast to FrameMaker. Thus, when you convert FrameMaker documents to HTML, it is helpful if your FrameMaker document already has a hierarchical structure.
Here is an example of a document whose paragraphs use heading levels consistently:
Chapter 1Heading 2Heading 2Heading 1Heading 1Heading 2Heading Chapter
Here is an example of a document whose paragraphs use heading levels inconsistently:
Chapter 2Heading 1Heading