IE9′s CSS3 Support

Including border-radius, rgba, media queries, CSS3 selectors and more! The beta is due out September 15th.

Source: http://msdn.microsoft.com/en-us/ie/ff468705.aspx#_CSS3

Author

I'm the creater of Inspect Element and currently work as a senior web designer and developer for Factory Media. You can read my personal blog and follow me on Google+ and Twitter.