diff --git a/index.html b/index.html
index cc22a652..9eb1f0ed 100644
--- a/index.html
+++ b/index.html
@@ -29,9 +29,13 @@
             background-color: #ed1c24;
         }
         iframe {
-            width: 100%;
-            height: 100%;
+            width: 100vw;
+            height: 100vh;
             border: none;
+            margin: 0;
+            padding: 0;
+            display: block;
+            overflow: auto;
         }
     </style>
 </head>