diff --git a/prototype/UI/index.html b/prototype/UI/index.html
index 1fa35fc53..8e73a35f6 100644
--- a/prototype/UI/index.html
+++ b/prototype/UI/index.html
@@ -8,11 +8,9 @@
     }
     #before {
         float: left;
-        background-color: #ffecec;
     }
     #after {
         float: right;
-        background-color: #eaffea;
     }
     body {
         margin: 0;