Some text in an XHTML document may be more important than other text. For example, the text in this section is considered more important than a footnote. XHTML provides six headers, called header elements, for specifying the relative importance of information. Figure F.4 demonstrates these elements (H1 through h6). Header element H1 (line 15) is considered the most significant header and is typically rendered in a larger font than the other five headers (lines 1620). Each successive header element (i.e., h2, H3, etc.) is typically rendered in a progressively smaller font.

Figure F.4. Header elements h1 tHRough h6.

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