--- a/css/tram-im.css	Mon Jan 02 00:54:02 2017 +0800
+++ b/css/tram-im.css	Mon Jan 02 01:46:02 2017 +0800
@@ -75,6 +75,10 @@
     width: 1%;
     vertical-align: middle;
 }
+.separate:last-child {
+    padding-top: 15px;
+    border-top: 1px solid #ddd;
+}
 .splitter {
     border-top: 1px solid #ddd;
     margin: 10px 0;

--- a/index.html	Mon Jan 02 00:54:02 2017 +0800
+++ b/index.html	Mon Jan 02 01:46:02 2017 +0800
@@ -131,7 +131,7 @@
       <div class="uk-grid uk-flex-item-auto main-grid">
         <div class="uk-width-xlarge-1-4 uk-width-large-1-3 uk-width-medium-1-2 uk-flex uk-flex-column contact-list-block">
           <ul class="uk-list uk-flex-item-auto contact-list" data-app="contacts"></ul>
-          <div class="uk-form uk-flex-item-none input-group">
+          <div class="uk-form uk-flex-item-none input-group separate">
             <input id="new-contact" type="text" value="" placeholder="add a contact" required>
             <span class="input-group-button">
               <button type="button" class="uk-button uk-button-success" data-add-button>
@@ -143,7 +143,7 @@
 
         <div class="uk-width-xlarge-3-4 uk-width-large-2-3 uk-width-medium-1-2 uk-flex uk-flex-column">
           <div class="uk-flex-item-auto message-area" data-app="logs"></div>
-          <div class="uk-form uk-flex-item-none input-group uk-hidden" data-form="send">
+          <div class="uk-form uk-flex-item-none input-group separate uk-hidden" data-form="send">
             <input id="msg" type="text" value="" placeholder="send a message" required>
             <span class="input-group-button">
               <button class="uk-button uk-button-primary" data-send-button>