diff --git a/src/main/webapp/WEB-INF/manager/main.ftl b/src/main/webapp/WEB-INF/manager/main.ftl
index f5e5a622..7ef6f8de 100644
--- a/src/main/webapp/WEB-INF/manager/main.ftl
+++ b/src/main/webapp/WEB-INF/manager/main.ftl
@@ -8,7 +8,7 @@
   <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" /> 
   <meta content="text/html; charset=utf-8" http-equiv="Content-Type" /> 
 <style>
-body{  height: 100%;}
+  body,html{height: -webkit-fill-available;}
 </style>
 </head>
 <body>
@@ -16,7 +16,7 @@ body{  height: 100%;}
     text-align: center;
     color: #555;
     background: #FCFCFC;
-    height: 300px;
+    height: -webkit-fill-available;
     padding-top: 200px;
     vertical-align: middle;
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