diff --git a/core/core-frontend/src/style/index.less b/core/core-frontend/src/style/index.less
index 9d13341c06..2689efb35c 100644
--- a/core/core-frontend/src/style/index.less
+++ b/core/core-frontend/src/style/index.less
@@ -603,3 +603,7 @@ strong {
     color: #a6a6a6;
   }
 }
+
+.ed-message .ed-message__closeBtn:hover {
+  background: #ebebebe6;
+}