diff --git a/lib/web/css/source/lib/_navigation.less b/lib/web/css/source/lib/_navigation.less
index 6ed3a9671ab13..56aa2e7ef86b9 100644
--- a/lib/web/css/source/lib/_navigation.less
+++ b/lib/web/css/source/lib/_navigation.less
@@ -305,6 +305,10 @@
             .lib-css(border-top, none);
         }
 
+        li.level1 {
+            position: relative;
+        }
+
         .level0 {
             .lib-css(margin, @_nav-level0-item-margin);
             display: inline-block;