diff --git a/radicale/web/internal_data/index.html b/radicale/web/internal_data/index.html
index 3b74fe41..ea294266 100644
--- a/radicale/web/internal_data/index.html
+++ b/radicale/web/internal_data/index.html
@@ -1,6 +1,7 @@
 <!DOCTYPE html>
 <html lang="en">
 
+<head>
 <meta charset="utf-8">
 <meta name="viewport" content="width=device-width, initial-scale=1">
 <meta http-equiv="X-UA-Compatible" content="IE=edge">
@@ -11,13 +12,16 @@
 <style>
     .hidden {display:none;}
 </style>
+</head>
 
+<body>
 <nav>
     <ul>
         <li id="logoutview" class="hidden"><a href="" data-name="link">Logout [<span data-name="user" style="word-wrap:break-word;"></span>]</a></li>
     </ul>
 </nav>
 
+<main>
 <section id="loadingscene">
     <h1>Loading</h1>
     <p>Please wait...</p>
@@ -128,3 +132,7 @@
         <button type="button" data-name="cancel">No</button>
     </form>
 </section>
+</main>
+</body>
+
+</html>
