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diff --git a/src/Hakyll/Web/CompressCss.hs b/src/Hakyll/Web/CompressCss.hs
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+-- | Module used for CSS compression. The compression is currently in a simple
+-- state, but would typically reduce the number of bytes by about 25%.
+--
+module Hakyll.Web.CompressCss
+    ( compressCssCompiler
+    , compressCss
+    ) where
+
+import Data.Char (isSpace)
+import Data.List (isPrefixOf)
+import Control.Arrow ((>>^))
+
+import Hakyll.Core.Compiler
+import Hakyll.Core.ResourceProvider
+import Hakyll.Core.Util.String
+
+-- | Compiler form of 'compressCss'
+--
+compressCssCompiler :: Compiler Resource String
+compressCssCompiler = getResourceString >>^ compressCss
+
+-- | Compress CSS to speed up your site.
+--
+compressCss :: String -> String
+compressCss = compressSeparators
+            . stripComments
+            . compressWhitespace
+
+-- | Compresses certain forms of separators.
+--
+compressSeparators :: String -> String
+compressSeparators = replaceAll "; *}" (const "}")
+                   . replaceAll " *([{};:]) *" (take 1 . dropWhile isSpace)
+                   . replaceAll ";;*" (const ";")
+
+-- | Compresses all whitespace.
+--
+compressWhitespace :: String -> String
+compressWhitespace = replaceAll "[ \t\n][ \t\n]*" (const " ")
+
+-- | Function that strips CSS comments away.
+--
+stripComments :: String -> String
+stripComments [] = []
+stripComments str
+    | isPrefixOf "/*" str = stripComments $ eatComments $ drop 2 str
+    | otherwise = head str : stripComments (drop 1 str)
+  where
+    eatComments str' | null str' = []
+                     | isPrefixOf "*/" str' = drop 2 str'
+                     | otherwise = eatComments $ drop 1 str'