Use right arrow instead of thick border for submenu indication

i2p2www/static/styles/duck/desktop.css

@@ -170,8 +170,10 @@ menu ul,
   border-left: 1px solid #ffffcc;
   /*margin-bottom: -1px;*/
 }
-#cssmenu .has-sub ul li.has-sub {
-  border-right: 5px solid #4B9C31
+#cssmenu .has-sub ul li.has-sub > div.menuitem:after {
+    content: "►";
+    color: rgba(255,255,255,.5);
+    float: right;
 }
 #cssmenu .has-sub ul li div.menuitem {
   /*background: #0fa1e0;*/
@@ -196,7 +198,6 @@ menu ul,
   position: absolute;
   left: 100%;
   top: 0;
-  margin-left: 5px;
 }
 #cssmenu .has-sub .has-sub ul li:first-child {
   border-left: none;