diff --git a/core/core-frontend/src/style/index.less b/core/core-frontend/src/style/index.less
index 30eae22d0e..06b38f25a0 100644
--- a/core/core-frontend/src/style/index.less
+++ b/core/core-frontend/src/style/index.less
@@ -442,8 +442,6 @@ strong {
 
   .ed-message__closeBtn {
     margin-left: 28px;
-    height: 16px;
-    width: 16px;
     position: relative;
     margin-right: 0;
     top: 0;