http://www.w3.org/1999/xhtml
group special.pre

Model

>
(br | span | bdo | map)

Source

<xs:group name="special.pre">
  <xs:choice>
    <xs:element ref="br"/>
    <xs:element ref="span"/>
    <xs:element ref="bdo"/>
    <xs:element ref="map"/>
  </xs:choice>
</xs:group>