as a hint 
 for the encoding used on serialization of the style sheet. 
 <p> The value of the @charset rule (and therefore of the 
 <code>CSSCharsetRule</code>) may not correspond to the encoding the 
 document actually came in; character encoding information e.g. in an HTTP 
 header, has priority (see CSS document representation) but this is not 
 reflected in the <code>CSSCharsetRule</code>. 
 <p>See also the <a href='http://www.w3.org/TR/2000/REC-DOM-Level-2-Style-20001113'>Document Object Model (DOM) Le