Information structure:
No metalanguage; entirely dependent on the author.
Document structure -- document objects:
| Document: | <HTML> ... </HTML> |
| Head: | <HEAD> ... </HEAD> |
| Title: | <TITLE> ... </TITLE> |
| Body: | <BODY> ... </BODY> |
| Section headings: | <H1> ... </H1> |
<H2> ... </H2> | |
<H3> ... </H3> | |
<H4> ... </H4> | |
<H5> ... </H5> | |
<H6> ... </H6> | |
| List blocks: | <UL> ... </UL> |
<OL> ... </OL> | |
| List elements: | <LI> ... </LI> |
| Table block: | <TABLE> ... </TABLE> |
| Table row: | <TR> ... </TR> |
| Table data (field): | <TD> ... </TD> |