@glazou UUUUUUUUUHHHH????????? It's a joke I presume ?!?
RT @ie9bugs: #ie9 has a limit of 4095 selectors per CSS file

@sgalineau @glazou Nope, not a joke. Up to 31 top-level stylesheets,
each with up to 31 imports, up to 4 levels deep; 4,096 rules
per stylesheet.

@glazou @sgalineau I just cannot believe Microsoft still has products
with such hard limits

Update: same thing for dynamically added sheets or rules

Update again;

@cwilso @sgalineau IE still has that limit?  I thought it was removed
 a couple of versions ago.  @glazou - you can blame my IE3/4
 impl for that.