--- a/2048.html	Mon Sep 15 02:56:52 2014 +0300
+++ b/2048.html	Mon Sep 15 02:57:23 2014 +0300
@@ -80,7 +80,7 @@
     div.ai > div.option > input.positive {
       text-align: right;
       max-width: 4em;
-      margin-rght: 2px;
+      margin-right: 2px;
     }
     .clearfix {
       clear: both;