I’ve had a little bit of an opportunity to play around with Internet Explorer 9, and I’m still not sure if I like it or hate it. I am excited about the possibility of natively using some CSS3 and HTML5 in Internet Explorer, but I’m also disappointed by the lack of specific CSS3 elements.
On the plus side, IE9 does support almost all of the new CSS3 pseudo-classes (
nth-of-type(), etc.), 2D transforms, almost the entire background module (multiple background images, background-clip, background-size, etc.), border-radius (rounded corners), box-shadow and RGBA colors.