diff --git a/css/area_main-sidebar-nav.less b/css/area_main-sidebar-nav.less
index 618e8c3..dbcb5fa 100755
--- a/css/area_main-sidebar-nav.less
+++ b/css/area_main-sidebar-nav.less
@@ -273,6 +273,7 @@
 
             ul {
                 margin-bottom: 0;
+                margin-left: 16px;
             }
         }
     }