diff --git a/src/styles/components/back-top.less b/src/styles/components/back-top.less
index f6be945c..52e41971 100644
--- a/src/styles/components/back-top.less
+++ b/src/styles/components/back-top.less
@@ -24,6 +24,6 @@
     i{
         color: #fff;
         font-size: 24px;
-        padding: 8px 16px;
+        padding: 8px 12px;
     }
 }