--- a/tweetcast/nodejs/client/css/style.css	Tue Oct 25 09:36:21 2011 +0200
+++ b/tweetcast/nodejs/client/css/style.css	Tue Oct 25 14:48:22 2011 +0200
@@ -158,22 +158,6 @@
     opacity: .4
 }
 
-.positive {
-	background: #c5e7cd;
-}
-
-.negative {
-	background: #f6ced0;
-}
-
-.reference {
-	background: #ecedc1;
-}
-
-.question {
-	background: #bfdbec;
-}
-
 /* timeline */
 
 #timeline, #timewindow {