The xml:base attribute

<slide xml:base="http://www.ibiblio.org/xml/slides/xmlonelondon2001/xlinks/">
  <title>The xml:base attribute</title>
  ...
  <previous xlink:type="simple" xlink:href="What_Is_XBase.xml"/>
  <next xlink:type="simple" xlink:href="xbaseexample.xml"/>
</slide>

• May be attached to any element to set the base URI for that element and its descendants

• The xml prefix is automatically bound to the http://www.w3.org/XML/1998/namespace URI

• The value should be an absolute URI