diff --git a/public/react/src/context/EvaluateSuccessEffectDisplay.js b/public/react/src/context/EvaluateSuccessEffectDisplay.js
index 7ce321bc2..4d283928b 100644
--- a/public/react/src/context/EvaluateSuccessEffectDisplay.js
+++ b/public/react/src/context/EvaluateSuccessEffectDisplay.js
@@ -78,7 +78,7 @@ class EvaluateSuccessEffectDisplay extends Component {
         if (type == "txt") {
             return (
                 <div className="task-popup-content clearfix">
-                    <div className="with49" style={{margin: '0 auto'}}>
+                    <div className="with80" style={{margin: '0 auto'}}>
                         <p className="color-blue font-18 mb20 edu-txt-center">实际输出</p>
                         <textarea className="output-txt" readonly="" defaultValue={contents}></textarea>
                     </div>