diff --git a/less/lib/Dropdown.less b/less/lib/Dropdown.less
index e032075d9..e6824e63c 100755
--- a/less/lib/Dropdown.less
+++ b/less/lib/Dropdown.less
@@ -17,6 +17,7 @@
   text-align: left;
   color: @text-color;
   font-size: 13px;
+  line-height: 1.5;
 
   .open & {
     display: block;