Make the sub-menus more obvious in duck's theme

i2p2www/static/styles/duck.css

@@ -169,6 +169,9 @@ menu ul,
 #cssmenu .has-sub ul li {
   *margin-bottom: -1px;
 }
+#cssmenu .has-sub ul li.has-sub {
+  border-right: 5px solid #4B9C31
+}
 #cssmenu .has-sub ul li a {
   /*background: #0fa1e0;*/
   /*border-bottom: 1px dotted #6fc7ec;*/
@@ -192,6 +195,7 @@ menu ul,
   position: absolute;
   left: 100%;
   top: 0;
+  margin-left: 5px;
 }
 #cssmenu .has-sub .has-sub ul li a {
   /*background: #0c7fb0;