diff --git a/public/react/src/modules/tpm/shixunchild/Challenges/Challengesjupyter.js b/public/react/src/modules/tpm/shixunchild/Challenges/Challengesjupyter.js
index 868fb95c3..e41ffca36 100644
--- a/public/react/src/modules/tpm/shixunchild/Challenges/Challengesjupyter.js
+++ b/public/react/src/modules/tpm/shixunchild/Challenges/Challengesjupyter.js
@@ -497,6 +497,7 @@ class Challengesjupyter extends Component {
 					    width:1px;
 					    height:1px;
 					    overflow: hidden;
+				      display: block;
 					  }
 						`
 						}