Get rid of unnecessary noVNC_container in lite

If we want to keep vnc_lite simple, we shouldn't have unnecessary
elements. All aspects of the container could be moved up a step in the
hierarchy.

app/styles/lite.css

@@ -1,7 +1,7 @@
 /*
  * noVNC auto CSS
  * Copyright (C) 2012 Joel Martin
- * Copyright (C) 2016 Samuel Mannehed for Cendio AB
+ * Copyright (C) 2017 Samuel Mannehed for Cendio AB
  * noVNC is licensed under the MPL 2.0 (see LICENSE.txt)
  * This file is licensed under the 2-Clause BSD license (see LICENSE.txt).
  */
@@ -10,26 +10,18 @@ body {
   margin:0;
   padding:0;
   font-family: Helvetica;
-  /*Background image with light grey curve.*/
-  background-color:#494949;
-  background-repeat:no-repeat;
-  background-position:right bottom;
+  background-color:#313131;
+  border-bottom-right-radius: 800px 600px;
   height:100%;
+  width:100%;
+  display: table;
 }
 
 html {
+  background-color:#494949;
   height:100%;
 }
 
-#noVNC_container {
-  display: table;
-  width:100%;
-  height:100%;
-  background-color:#313131;
-  border-bottom-right-radius: 800px 600px;
-  /*border-top-left-radius: 800px 600px;*/
-}
-
 #noVNC_status {
   font-size: 12px;
   padding-top: 4px;