Offline intersitital - Fix sprite clipping and clipped button highlight

chrome/renderer/resources/neterror.css

 /* Copyright 2013 The Chromium Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file. */
 
 /* Don't use the main frame div when the error is in a subframe. */
 html[subframe] #main-frame-error {
   display: none;
 }
 
 /* Don't use the subframe error div when the error is in a main frame. */
@@ skipping 48 matching lines @@
   height: 47px;
   margin: 0 0 40px;
   position: relative;
   width: 44px;
 }
 
 #content-top {
   margin: 20px;
 }
 
-#help-box-outer {
-  -webkit-transition: height ease-in 218ms;
-  overflow: hidden;
-}
-
 #help-box-inner {
   background-color: #f9f9f9;
   border-top: 1px solid #EEE;
   color: #444;
   padding: 20px;
   text-align: start;
 }
 
 #suggestion {
   margin-top: 15px;
@@ skipping 218 matching lines @@
   position: absolute;
   top: 0;
   width: 100vw;
   z-index: 1;
 }
 
 #offline-resources {
   display: none;
 }