Well CSS3 is getting closer and closer to being finished. What do you think of it? I think it is a huge improvement over CSS2.1 . It also makes it easier for people not so good in graphic effects.
Well CSS3 is the styles for your html. What is so great about this versions are the new tags. border-radius being my favorite. So instead of you having to make the curved corners yourself,you can use css3 to do so. Another one of my favorites is the background-size tag. It auto resizes any image to the size you want. So if you have a background for your website you can make it work with all resolutions.
CSS 3 is just great To bad we still have to wait with using it all as just few browsers yet support it.