diff --git a/threadr/board/board.php b/threadr/board/board.php
index ee7521f..b2e4acc 100644
--- a/threadr/board/board.php
+++ b/threadr/board/board.php
@@ -12,7 +12,7 @@ $id=$_GET['id'];
       %STYLESHEET%
       <!--<meta name="viewport" content="width=device-width, initial-scale=1.0"> ToDo: ?-->
   </head>
-  <body>
+  <body class="iframe">
     <section>
       <h1>Lorem ipsum</h1>
       <article>
