CSS - Cascading Style Sheet
css
\:im: \; experimental thingy using internal regexp states
/`*`* .+?`*/\=1e
|/`*! .+?`*/\=13
|/`*[.\n]+?(\Z|`*/)\=2f
|(\}[\s\r\n]+)?@media (\w+)(, \w+)*\s*\{\=43
|! *important\=43
|rgba\=41
|\b\d+%\=2 \; percentages
|\b[\d\.]+(em|ex|pt|px|cm)?\b\=2 \; numbers
|url\(.*?\)\=2
|\b(a(uto|bsolute)|b(aseline|lock|o(th|ld|ttom))|c(enter|ollapse)|de(tail|fault)|fixed|hidden|i(talic|n(line(-block)?|herit|set))|left|middle|no(wrap|ne|rmal|-repeat)|right|re(lative|peat-(x|y))|s(ans-serif|croll|eparate|olid|tatic)|t(op|ext-(top|bottom))|underline)[ ;]\<\=41
|\s(bl(ack|ue)|green|red|silver|yellow|white|Active(Border|Caption)|AppWorkspace|Background|Button(Face|Highlight|Shadow|Text)|CaptionText|GrayText|Highlight|HighlightText|Inactive(Border|Caption|CaptionText)|Info(Background|Text)|Menu|MenuText|Scrollbar|ThreeD(DarkShadow|Face|Highlight|LightShadow|Shadow)|Window|Window(Frame|Text))[ ;]\<\=4a
|#([A-F\d]{6}|[A-F\d]{3})\b\=4a
|\=?0({\=:1\=e|[\w:\-]+\=47)
|\=?1(}\=:0\=e|:\=:2\=40|[\w\-]+\=1)
|\=?2(}\=:0\=e|;\=:1\=1|.\=7)