Reference:
(...) Comments begin
with the characters "/*" and end with the characters "*/". They may occur
anywhere between tokens, and their contents have no influence on the
rendering.
coming from CSS 2.1, section 4.1.9
Comments
Internet Explorer 7, Firefox 3.0.3, Opera 9.62, Safari 3.1.2, Safari 4.0, Konqueror 4.1.1, Google Chrome 0.3, NS 7.2, Hv3 TKHTML alpha 16, Amaya 10.0.1, Seamonkey 1.x, Seamonkey 2.x, K-meleon 1.x, Galeon 2.0.7, Epiphany 2.22 all pass both of these tests.
Update: This bug has been FIXED in Internet Explorer 8 Partner pre-RC1 build 6001.18343 released on December 11th 2008. Otherwise, Internet Explorer 8 Partner pre-RC1 build 6001.18343 PASSES this specific and particular testcase.