diff --git a/components/alert/style/index.less b/components/alert/style/index.less
index 416be69914f5..185344c0e53b 100644
--- a/components/alert/style/index.less
+++ b/components/alert/style/index.less
@@ -88,6 +88,7 @@
     position: absolute;
     top: 8px;
     right: 16px;
+    padding: 0;
     overflow: hidden;
     font-size: @font-size-sm;
     line-height: 22px;