Preview with draft background added to themes

templates/themes/clear-blue/base.css

@@ -79,6 +79,17 @@ a {
   font-weight: bold;
 }
 
+.preview {
+  background-image: url("{% static 'themes/draft.png' %}");
+  padding: 40px;
+  padding-top: 75px;
+  min-height: 300px;
+}
+
+.preview-spacer {
+  min-height: 35px;
+}
+
 a:hover {
   background: #80baf1;
 }