--- a/index.html	Sat Dec 17 02:11:26 2016 +0800
+++ b/index.html	Sat Dec 17 02:15:44 2016 +0800
@@ -69,7 +69,7 @@
       $('[data-step="noscript"]').addClass('uk-hidden');
     </script>
 
-    <div class="has-sidebar full-height uk-hidden" data-step="main">
+    <div class="has-sidebar full-height uk-flex uk-flex-column uk-hidden" data-step="main">
       <div class="sidebar" data-app="sidebar" rv-class-mini="model:sidebar/minified">
         <ul class="uk-nav uk-nav-offcanvas uk-text-nowrap">
           <li class="uk-text-center">
@@ -126,9 +126,9 @@
         </ul>
       </div>
 
-      <div data-app="calls"></div>
+      <div class="uk-flex-item-none" data-app="calls"></div>
 
-      <div class="uk-grid main-grid">
+      <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 contact-list-block">
           <ul class="uk-list contact-list" data-app="contacts"></ul>
           <div class="uk-form input-group">