> li:not(.parent,.active,.item33,.item34,.item35)
That's interesting -- it wouldn't work in CSS3 because (in the latest
proposed spec) the :not pseudo accepts a simple selector, not a group
of selectors. But Slick apparently lets it go.
It should be
li:not(.parent):not(.active):not(.item33):not(.item34):not(.item35)
Which is valid CSS3 *and* parsed correctly by Slick.
My feeling is that for FC, the group of selectors should not be
allowed because you can't pass it to querySelectorAll, etc. I'll
file a bug if somebody gives me a +1.
-- Sandy