Convert Inline Styles To Css Rules

I'm interesting if there is a way to convert inline element styles to the css rules. The hardest part, I think, is to generate needed css-selectors. May be it's not possible at all

Solution 1:

Try http://extractcss.com, but as @Tushar pointed out, the yellow div won't work.

Try https://github.com/jonkemp/extract-css too, which looks promising.