Update pong.html

Author: john-doherty

games/pong.html

@@ -16,14 +16,13 @@
       html, body {
         width: 100%;
         height: 100%;
-        background: #1e2230;
+        background: #1b2125;
         overflow: hidden;
         touch-action: none;
       }
 
       canvas {
         cursor: none;
-        background: #1b2125;
       }
     </style>
     <script src="../src/punter.js"></script>