CSS3 transitions on pseudo-elements (:after, :before) not working?

Question

I\'m showing the title attribute of a link on :hover. The title attribute is appended to the link via :after… 

Now I\'m wonder

Answer 1

WebKit (Chrome, Safari) does not support transitions on pseudo elements.

• https://bugs.webkit.org/show_bug.cgi?id=23209
• http://code.google.com/p/chromium/issues/detail?id=54699

It should work in Firefox.

Edit: The issue in WebKit is now resolved. The patch allready landed in Chrome Carnery, so it will be supportet from version 26 on. I don't know about Safari.