diff --git a/src/index.less b/src/index.less
index 3d66605..3951a0f 100644
--- a/src/index.less
+++ b/src/index.less
@@ -12,7 +12,7 @@ code {
     monospace;
 }
 
-.mt-10{
+.mt-10 {
   margin-top: 10px;
 }
 
@@ -103,7 +103,7 @@ code {
   height: 100px;
 }
 
-.form-course-thumb{
+.form-course-thumb {
   width: 200px;
   height: 150px;
 }
@@ -149,7 +149,6 @@ code {
   color: #ff4d4f !important;
 }
 
-
 textarea.ant-input {
   vertical-align: middle;
 }
@@ -157,3 +156,7 @@ textarea.ant-input {
 .none {
   display: none;
 }
+
+.ant-menu-inline > .ant-menu-submenu > .ant-menu-submenu-title {
+  font-weight: 600 !important;
+}