A MathML for CSS profile: Working Draft
2007-04-27: The Math Working Group has published the First Public Working Draft of A MathML for CSS profile. This subset of MathML 3.0 can be used to capture the structure of mathematical formulas in a way particularly suitable for further CSS formatting. Coordinated with ongoing work on CSS Level 3, the profile is expected to facilitate adoption of MathML in Web browsers and CSS formatters. Visit the Math home page. (Permalink)
Read more at: http://www.w3.org/News/2007#item82.