diff --git a/components/style/themes/default.less b/components/style/themes/default.less
index 81625aa2f0..3e2402579f 100644
--- a/components/style/themes/default.less
+++ b/components/style/themes/default.less
@@ -114,7 +114,7 @@
 // Shadow
 @shadow-color           : rgba(0, 0, 0, .15);
 @box-shadow-base        : @shadow-1-down;
-@shadow-1-up            : 0 2px 8px @shadow-color;
+@shadow-1-up            : 0 -2px 8px @shadow-color;
 @shadow-1-down          : 0 2px 8px @shadow-color;
 @shadow-1-left          : -2px 0 8px @shadow-color;
 @shadow-1-right         : 2px 0 8px @shadow-color;