CSS Validator Result: style sheet needs needs a correct parse tree


I submitted a CSS style sheet to WSC CSS Validator for validation.
The result was:
"No error or warning found"
followed be these two sentences:
"To work as intended, your CSS style sheet needs a correct document 
parse tree. This means you should use valid HTML."
What are these two sentences supposed to tell me? I still assume
the checked is correct and conforms to the CSS specification.
What about the "parse tree"?: is something missing?



Franz J. Polster                          phone : [+49|0]7541 94 12 00
Wasenoeschstr. 57                    mob. phone : [+49|0]179 67 83 613
88048 Friedrichshafen     email: Franz.Polster@alumni.uni-karlsruhe.de

Received on Thursday, 25 November 2004 16:32:12 UTC