From 92fe84919bd1179e1b0d8f904695cf8845c4f2a1 Mon Sep 17 00:00:00 2001
From: afc163 <afc163@gmail.com>
Date: Wed, 17 Jun 2015 17:30:25 +0800
Subject: [PATCH] dropdown trigger arrow should rotate

---
 style/components/dropdown.less | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/style/components/dropdown.less b/style/components/dropdown.less
index bfecc9d577..56bb9d159f 100644
--- a/style/components/dropdown.less
+++ b/style/components/dropdown.less
@@ -15,6 +15,15 @@
 
   &-wrap {
     position: relative;
+    .anticon-down {
+      transition: transform 0.2s ease;
+    }
+  }
+
+  &-wrap-open {
+    .anticon-down {
+      transform: rotate(180deg);
+    }
   }
 
   &-hidden {
@@ -148,4 +157,4 @@
       transform: scaleY(0);
     }
   }
-}
\ No newline at end of file
+}