Building web pages with XHTML 1.1

The content of a number of XHTML elements can be any mixture of text, inline elements, and block elements. Here is the content model of the abbrievation Flow.model:

Flow.model = ( text | Inline.model | Block.class )*

For example, the content of a bullet element (li) inside a bullet list (ul) doesn't have to be enclosed in any additional elements, but if you wish, you can enclose it in any number of inline or block elements. See Section 9.7, “The ul element: Unnumbered or “bullet” lists”.