@import rules are ignored in style attributes

As per this StackOverflow question 
<http://stackoverflow.com/questions/24717215/>.

Given an HTML document containing a style attribute with an `@import` 
rule in it, the rule will be ignored instead of being reported as an 
error.

Test case here: 
<http://jigsaw.w3.org/css-validator/validator?uri=http%3A%2F%2Ftest-cases.dorward.me.uk%2Fstackoverflow%2F24717215%2F&profile=css3&usermedium=all&warning=1&vextwarning=&lang=en>




-- 
David Dorward
http://dorward.co.uk/