If HTML Purifier's attribute set is unsatisfactory, overload it! The syntax is "tag.attr" or "*.attr" for the global attributes (style, id, class, dir, lang, xml:lang).
Warning: If another directive conflicts with the elements here, that directive will win and override. For example, %HTML.EnableAttrID will take precedence over *.id in this directive. You must set that directive to true before you can use IDs at all.
--# vim: et sw=4 sts=4