diff --git a/src/layouts/BasicLayout.less b/src/layouts/BasicLayout.less
index 91ad7d99..e466239e 100644
--- a/src/layouts/BasicLayout.less
+++ b/src/layouts/BasicLayout.less
@@ -3,7 +3,7 @@
 .header {
   padding: 0 12px 0 0;
   background: #fff;
-  box-shadow: 0 1px 4px rgba(0, 21, 41, .12);
+  box-shadow: 0 1px 4px rgba(0, 21, 41, .08);
   position: relative;
 }