How much are you interested that the attribute "style" will offer the
same or similar capabilities like they are provided by the element
"style" in the element "head"?
Do you want that the document "Syntax of CSS rules in HTML's "style"
attribute" (http://www.w3.org/TR/css-style-attr) will become an
official recommendation in the near future?
Best regards,
Markus Elfring