diff --git a/public/react/src/modules/tpm/shixunchild/shixunchildCss/Challenges.css b/public/react/src/modules/tpm/shixunchild/shixunchildCss/Challenges.css
index 06a06f7da..f8b499e1f 100644
--- a/public/react/src/modules/tpm/shixunchild/shixunchildCss/Challenges.css
+++ b/public/react/src/modules/tpm/shixunchild/shixunchildCss/Challenges.css
@@ -131,7 +131,6 @@
     height: 76px;
     line-height: 35px;
     padding: 20px;
-    border-bottom: 1px solid #eeee;
 }
 
 .padding1020pxshixun{