diff --git a/public/react/src/modules/courses/coursesPublic/NewShixunModel.js b/public/react/src/modules/courses/coursesPublic/NewShixunModel.js
index 99a8ad232..a20f7733c 100644
--- a/public/react/src/modules/courses/coursesPublic/NewShixunModel.js
+++ b/public/react/src/modules/courses/coursesPublic/NewShixunModel.js
@@ -428,6 +428,9 @@ class NewShixunModel extends Component{
 					   .ant-drawer-body {
 								padding:15px 24px 24px 0px;
 					  	}
+					  	.ant-dropdown {
+					  	  z-index:11000
+					  	}
 					  `
 					}
 				</style>