Add a white background.

Move the css edit from the previous commit to the main style sheet

Author: kgrz

app.rb

@@ -270,6 +270,9 @@ def get_activity_by_author
 
 @import 'public/stylesheets/gridset.scss'
 
+html
+  background-color: white
+
 body
   font-family: 'Lucida Grande', Verdana, sans-serif
   font-size: 14px

public/stylesheets/chosen.css

@@ -1,6 +1,3 @@
-html {
-  background-color: white;
-}
 /* @group Base */
 .chzn-container {
   font-size: 13px;