diff --git a/public/react/src/modules/courses/shixunHomework/CommitSummary.js b/public/react/src/modules/courses/shixunHomework/CommitSummary.js
index 8bbbcddc5..72729b77b 100644
--- a/public/react/src/modules/courses/shixunHomework/CommitSummary.js
+++ b/public/react/src/modules/courses/shixunHomework/CommitSummary.js
@@ -174,7 +174,27 @@ class CommitSummary extends Component{
                                                   )}
                                               </div>
                                           </Form.Item>
-
+                                        <style>
+                                          {
+                                            `
+                                            .ant-form-item {
+                                              -webkit-box-sizing: border-box;
+                                              box-sizing: border-box;
+                                              margin: 0;
+                                              padding: 0;
+                                              color: rgba(0, 0, 0, 0.65);
+                                              font-size: 14px;
+                                              font-variant: tabular-nums;
+                                              line-height: 1.5;
+                                              list-style: none;
+                                              -webkit-font-feature-settings: 'tnum';
+                                              font-feature-settings: 'tnum';
+                                              /* margin-bottom: 24px; */
+                                              vertical-align: top;
+                                            }                  
+                                            `
+                                          }
+                                        </style>
                                           <Form.Item>
                                               <div className="clearfix mt40 mb30">
                                                   <Button type="primary" htmlType="submit" className="defalutSubmitbtn fl mr20" >