Like with the element counts, the grain-of-salt alarms are going off with this one. But apparently IE7 passes only 54% of the CSS test suite, up from 52% for IE6. (But even Mozilla only scores 93%). It’s not entirely clear how these numbers derive from the source data, and it certainly isn’t weighted for things like how useful or commonly used various features are.
It’s completely silly to say Microsoft isn’t even trying to implement the standard. Every engineer, product manager, or blogger involved with the project will honestly and sincerely describe the huge amount of effort going into standards compliance. To get to the problem, you need to dig deeper.
I’ll end on that enigmatic note. More later. -m