There are some really handy things that IE7 lacks and IE8 now supports. For example: pseudo-classes before/after/focus, inherit keyword support, and alternativ

There are some really handy things that IE7 lacks and IE8 now supports. For example: pseudo-classes before/after/focus, inherit keyword support, and alternative display values. The other things IE7 doesn't support are trivial in some respects (but not exactly trivial).