diff --git a/index.html b/index.html
index 8b1b0cd3db..adfdd7e4b2 100644
--- a/index.html
+++ b/index.html
@@ -3,9 +3,12 @@
 this repository contains the full copyright notices and license terms. -->
 <html style="overflow: auto;">
     <head>
-        <meta http-equiv="content-type" content="text/html; charset=utf-8"/>
+        <meta charset="utf-8"/>
+        <meta name="viewport" content="width=device-width, initial-scale=1"/>
+
         <title>Tryton</title>
-        <link rel="icon" type="image/png" href="images/tryton-icon.png"/>
+        <link rel="icon" type="image/png" href="images/tryton-icon.png">
+
         <script type="text/javascript" src="bower_components/jquery/dist/jquery.min.js"></script>
         <script type="text/javascript" src="bower_components/bootstrap/dist/js/bootstrap.min.js"></script>
         <script type="text/javascript" src="bower_components/moment/min/moment.min.js"></script>
@@ -14,11 +17,13 @@ this repository contains the full copyright notices and license terms. -->
         <script type="text/javascript" src="bower_components/gettext.js/dist/gettext.js"></script>
         <script type="text/javascript" src="bower_components/d3/d3.min.js"></script>
         <script type="text/javascript" src="bower_components/c3/c3.js"></script>
+
         <link rel="stylesheet" href="bower_components/bootstrap/dist/css/bootstrap.css">
         <link rel="stylesheet" href="bower_components/eonasdan-bootstrap-datetimepicker/build/css/bootstrap-datetimepicker.min.css">
-        <link rel="stylesheet" href="bower_components/typeahead.js-bootstrap3.less/typeahead.css"/>
-        <link rel="stylesheet" href="bower_components/c3/c3.min.css"/>
+        <link rel="stylesheet" href="bower_components/typeahead.js-bootstrap3.less/typeahead.css">
+        <link rel="stylesheet" href="bower_components/c3/c3.min.css">
         <link rel="stylesheet" href="offcanvas.css">
+
         <script type="text/javascript" src="dist/sao.min.js"></script>
         <link rel="stylesheet" type="text/css" href="dist/sao.min.css"
         media="screen"/>