diff --git a/src/index.less b/src/index.less
index 3a3c44c..6f8a499 100644
--- a/src/index.less
+++ b/src/index.less
@@ -163,6 +163,10 @@ code {
   height: 48px !important;
 }
 
+.ant-menu-item-only-child {
+  height: 40px !important;
+}
+
 .ant-menu-submenu-active > .ant-menu-submenu-title {
   background-color: rgba(#ff4d4f, 0.1) !important;
 }