diff --git a/public/react/src/modules/courses/poll/PollDetailTabForthRules.js b/public/react/src/modules/courses/poll/PollDetailTabForthRules.js
index 2a2ff218b..3b0141ff5 100644
--- a/public/react/src/modules/courses/poll/PollDetailTabForthRules.js
+++ b/public/react/src/modules/courses/poll/PollDetailTabForthRules.js
@@ -353,7 +353,7 @@ class PollDetailTabForthRules extends Component{
         {/* item宽度超长 */}
         <style>{`
           .setInfo .ant-select-selection--multiple .ant-select-selection__choice__content {
-            max-width: 300px;
+            max-width: 288px;
           }
         `}</style>