Update network error interstitial strings

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. */
 html:not([subframe]) #sub-frame-error {
   display: none;
 }
 
 #diagnose-button {
   -webkit-margin-start: 0;
   float: none;
   margin-bottom: 10px;
   margin-top: 20px;
 }
 
 h1 {
   margin-top: 0;
+  word-wrap: break-word;
+}
+
+h1 span {
+  font-weight: 500;
 }
 
 h2 {
   color: #666;
   font-size: 1.2em;
   font-weight: normal;
   margin: 10px 0;
 }
 
 a {
@@ skipping 25 matching lines @@
 
 .icon-disabled {
   content: -webkit-image-set(
       url(default_100_percent/offline/100-disabled.png) 1x,
       url(default_200_percent/offline/200-disabled.png) 2x);
   width: 112px;
 }
 
 .error-code {
   display: block;
+  font-size: .8em;
 }
 
 #content-top {
   margin: 20px;
 }
 
 .gray-button {
   background: #d9d9d9;
   color: #696969;
 }
@@ skipping 32 matching lines @@
 
 #search-container {
   /* Prevents a space between controls. */
   display: flex;
   margin-top: 20px;
 }
 
 #search-box {
   border: 1px solid #cdcdcd;
   flex-grow: 1;
-  font-size: 16px;
+  font-size: 1em;
   height: 26px;
   margin-right: 0;
   padding: 1px 9px;
 }
 
 #search-box:focus {
   border: 1px solid rgb(93, 154, 255);
   outline: none;
 }
 
@@ skipping 95 matching lines @@
   }
   #help-box-inner {
     padding: 20px;
   }
   .suggestions {
     margin-top: 10px;
   }
   .suggestion-header {
     margin-bottom: 0;
   }
-  .error-code {
-    margin: 10px 0;
-  }
 }
 
 /* Don't allow overflow when in a subframe. */
 html[subframe] body {
   overflow: hidden;
 }
 
 #sub-frame-error {
   -webkit-align-items: center;
   background-color: #DDD;
@@ skipping 201 matching lines @@
     overflow: inherit;
     padding: 0 8px;
   }
 }
 
 @media (max-width: 120px) {
   button {
     width: auto;
   }
 }