Added background image to catalog.

Change-Id: Ibd45b2f26351e1d4eb558d523a150d0d49ce2899
diff --git a/client/catalog/css/style.css b/client/catalog/css/style.css
index 45752a6..122c438 100644
--- a/client/catalog/css/style.css
+++ b/client/catalog/css/style.css
@@ -3,8 +3,13 @@
   height: 100%;
   margin: 0;
   min-width: 650px;
+  background-image: url(../background.jpg);
+  background-size: contain;
+  background-attachment: fixed;
 }
 
+body#body {}
+
 .sidebar {
   height: 100%;
   max-height: 100%;