You can override some of the properties of paragraph formats directly:
[HtmlStyles] ; doc format (para or char) = keywords for functions and properties ; Left, Center, Right apply those props to head
The alignment settings (Left, Center, Right) override the align attribute in the paragraph tag.
To eliminate align attributes from paragraph tags:
[HTMLOptions] ; AlignAttributes = Yes (default) ; or No (no align attribute in paragraph tags) ; Default is reversed to No if UseCSS=Yes. AlignAttributes = No
If you use CSS, the default value of AlignAttributes is reversed to No; see §31.5 Understanding how CSS affects other options.