Element: document-subtitle
Content Model
( #PCDATA | bold | italic | monospace | overline | roman | sans-serif | sc | strike | underline | sub | sup )*
May Contain:
- PCDATA
- <bold>
- <italic>
- <monospace>
- <overline>
- <roman>
- <sans-serif>
- <sc>
- <strike>
- <sub>
- <sup>
- <underline>