diff --git a/www/client/index.php b/www/client/index.php
index c0bdf6cf40..d150462442 100644
--- a/www/client/index.php
+++ b/www/client/index.php
@@ -105,7 +105,7 @@ $user = User_Adapter::getInstance($usr_id, $appbox);
             }
         </style>
     </head>
-    <body class="PNB" style="overflow:hidden;">
+    <body class="PNB" style="width:100%;height:100%;overflow:hidden;">
         <div id="container" style="position:absolute;top:0;left:0;overflow:hidden;width:100%;height:100%;">
 
 <?php
