--- a/css/tram-im.css	Fri Dec 16 11:23:21 2016 +0800
+++ b/css/tram-im.css	Fri Dec 16 22:12:18 2016 +0800
@@ -66,6 +66,7 @@
 }
 .uk-form.input-group {
     display: table;
+    margin-bottom: 15px;
 }
 .uk-form.input-group > input {
     display: table-cell;