CSS3 brings with it some incredibly powerful styling features. Rounded corners, soft drop shadows, gradient fills, and so on. These are the kinds of elements our designer friends love to use because they make for attractive sites, but are difficult and time-consuming to implement, involving complex sprite images, extra non-semantic markup, large JavaScript libraries, and other lovely hacks.

As Internet Explorer has serious issues supporting CSS3 features and for those designers / developers who are facing such issues; Greepit previously shared couple of resources to add CSS3 support to Internet Explorer, checkout IE-CSS3 and Modernizr.

PIE (progressive internet explorer) is an IE attached behavior (.htc file) which makes Internet Explorer 6-8 capable of rendering several of the most useful CSS3 decoration features.