<markupname>
Use the <markupname> element to identify mentions of named
         markup tokens, such as elements or attributes in XML or SGML, named groups in XSD
         schemas, or
         named patterns in RELAX NG schemas. This element also serves as the specialization
         basis for the
         elements in the XML mention domain; when that domain is present, use
            its more specific elements instead of <markupname> when
         appropriate.
      
      Content models
See appendix for information about this element in OASIS document type shells.
Inheritance
+ topic/keyword markup-d/markupname
Example
The <markupname>p.attributes</markupname> attribute group defines the allowed attributes for the <xmlelement>p</xmlelement> element.
Attributes
The following attributes are available on this element: Universal attribute group, @outputclass, and @keyref.