XML in a Nutshell, 3rd Edition

Name

xs:simpleContent

Synopsis

<xs:simpleContent
  id = "ID" >
  <!-- (xs:annotation?, (xs:restriction | xs:extension)) -->
</xs:simpleContent>

The xs:simpleContent element is used inside xs:complexType elements whose content is a simple type, such as xs:string or xs:integer, rather than child elements or mixed content. This is customarily done when the only reason an element has a complex type instead of a simple type is because it can have attributes.