For what it's worth, we used PIE for IE7 support of some css3 features at my last job. Performance was awful and buggy. I do not recommend trying to force non-e

For what it's worth, we used PIE for IE7 support of some css3 features at my last job. Performance was awful and buggy. I do not recommend trying to force non-essential graphical niceties onto browsers that can't support them. If you or your boss is insisting on some insane pixel-per-pixel matching between all browsers, either you or they are wrong.