<root>
 <head xmlns="http://www.w3.org/1999/xhtml">
  <link rel="author" title="Anne van Kesteren" href="http://annevankesteren.nl/"/>
  <link rel="author" title="Opera Software ASA" href="http://opera.com/"/>
  <link rel="help" href="http://www.w3.org/TR/css3-namespace/#prefixes"/>
  <title>CSS Namespaces Test Suite: empty string prefix (Implied element namespace)</title>
  <style>
   @namespace foo "";
   t { background:red }
   foo|t { background:lime }
  </style>
 </head>
 <t>This sentence should have a green background.</t>
</root>
