Network error interstitial bug fixes

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 38 matching lines @@
       url('default_200_percent/common/error_network_generic.png') 2x);
   height: 50px;
   padding-top: 20px;
   width: 41px;
 }
 
 .icon-offline {
   content: -webkit-image-set(
       url('default_100_percent/offline/100-error-offline.png') 1x,
       url('default_200_percent/offline/200-error-offline.png') 2x);
+  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;
 }
@@ skipping 187 matching lines @@
 }
 
 #buttons::after {
   clear: both;
   content: '';
   display: block;
   width: 100%;
 }
 
 /* Offline page */
-.offline .icon {
-  height: 47px;
-  margin: 0 0 40px;
-  position: relative;
-  width: 44px;
-}
-
 .offline .interstitial-wrapper {
   color: #2b2b2b;
   font-size: 1em;
   line-height: 1.55;
   margin: 100px auto 0;
   max-width: 600px;
   width: 100%;
 }
 
 .offline .runner-container {
@@ skipping 22 matching lines @@
   position: absolute;
   top: 0;
   width: 100vw;
   z-index: 1;
 }
 
 #offline-resources {
   display: none;
 }