Minimization of pseudo-classes

[eGavr]

Look at this test, please!

a {
    color: red
}

a, x:after {
    color: red
}

It is minimized to

a,x:after{color:red}

Sometimes this minimized code is not correct in some browses. For example IE, which version is less than 8, does not know anything about pseudo-elements, so according to CSS-specification, this browser will ignore this block, because its selector has unknown syntax for him.

I mean, that those browsers which do not support the :after will not see the entire minimized block!

[GoalSmashers]

@eGavr Indeed that's a problem when caring about IE7 compatibility. We've had similar code for IE8 before so adding one for IE7 wasn't a problem.

It seems we need to update the list slightly to make sure all selectors are matched, see: http://kimblim.dk/css-tests/selectors/

[eGavr]

As I've understood, clean-css checks whether all browsers support this or that selector, and if 'Yes', the selector is going to be minimized?

[GoalSmashers]

That's how it works indeed!

Selectors updated in cefbc2a