no stylesheet found

Hello,
I tried to validate http://www.weezenhof.com/onderhoud.php in the css  
validator, but I get the answer -no stylesheet found- . I know this  
means there is something wrong, but I don't know what.
I'd appreciate it very much if you could help me solve this problem.
Best regards,
Yvonne Janssen


--
  Yvonne Janssen
  Weezenhof.com Webdesign
  webdesign@weezenhof.com
  http://www.weezenhof.com/
  Tel. 06 -20828603

Received on Friday, 9 January 2009 13:25:08 UTC