diff --git a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Theme.Basic/Themes/Basic/Components/Menu/Default.cshtml b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Theme.Basic/Themes/Basic/Components/Menu/Default.cshtml
index dd0d74b29e..6e13ae01a0 100644
--- a/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Theme.Basic/Themes/Basic/Components/Menu/Default.cshtml
+++ b/framework/src/Volo.Abp.AspNetCore.Mvc.UI.Theme.Basic/Themes/Basic/Components/Menu/Default.cshtml
@@ -53,8 +53,8 @@
         .navbar .dropdown-submenu a::after {
             transform: rotate(-90deg);
             position: absolute;
-            right: 6px;
-            top: .8em;
+            right: 16px;
+            top: 18px;
         }
 
         .navbar .dropdown-submenu .dropdown-menu {