下拉省略

public/react/src/modules/courses/members/studentsList.js

@@ -603,10 +603,11 @@ class studentsList extends Component{
                     width: 93px;
                 }
                 .drop_down_menu li {
-                    overflow: visible;
                     width:100%;
                     box-sizing:boder-box;
                     float:unset;
+                    line-height:30px!important;
+                    flex: 0 0 30px;
                 }
                 .drop_down_menu, .drop_down_normal {
                     padding-top: 10px;

public/react/src/modules/courses/members/teacherList.js

@@ -683,6 +683,11 @@ class studentsList extends Component{
           .dividerStyle.ant-divider-horizontal{
             margin: 0px;
           }
+          
+          .drop_down_menu li {
+            line-height:30px!important;
+            flex: 0 0 30px;
+          }
         `}</style>
         <div className="mt20 edu-back-white padding20 teacherList">