diff --git a/static/assets/css/navigators/sidebar.css b/static/assets/css/navigators/sidebar.css
index 39df4eb..9faf7e7 100644
--- a/static/assets/css/navigators/sidebar.css
+++ b/static/assets/css/navigators/sidebar.css
@@ -54,7 +54,8 @@
   padding-left: 0px !important;
 }
 
-.tree {
+.tree,
+.tree ul {
   margin: 0;
   padding: 0;
   list-style: none;