invoke css

IPython/html/static/style/style.min.css

@@ -8675,6 +8675,7 b' ul#new-menu {'
   padding-bottom: 4px;
   padding-left: 7px;
   padding-right: 7px;
+  line-height: 22px;
 }
 #running .panel-group .panel .panel-body {
   padding: 0px;
@@ -8688,6 +8689,9 b' ul#new-menu {'
 #running .panel-group .panel .panel-body .list_container .list_item {
   border-bottom: 1px solid #ddd;
 }
+#running .panel-group .panel .panel-body .list_container .list_item:last-child {
+  border-bottom: 0px;
+}
 /*!
 *
 * IPython text editor webapp