where does CSS go?

Is it okay to use a <link> for a style sheet in the body, or is this considered invalid and therefore potentially problematic?

As I understand it either <link ... > or <style> ... </style> tags should only go in the head. You can't rely on it being parsed in the body. The body should only conatin in-line styles.

http://www.w3.org/TR/html4/struct/links.html#h-12.3

This says it rather bluntly:

This element defines a link. Unlike A, it may only appear in the HEAD section of a document...

thanks for the info