[WebUI] Fix rest of CSS style nits so I can turn on CSS checker.

chrome/browser/resources/sync_internals/sync_search.css

 /* Copyright (c) 2012 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. */
 
 #sync-search-query {
   width: 20em;
 }
 
 #sync-search-status {
   color: #333;
@@ skipping 13 matching lines @@
   height: 100%;
   /* min-width and max-width are used by the split pane. */
   max-width: 50%;
   min-width: 50px;
   overflow: auto;
   padding: 5px;
   width: 275px;
 }
 
 #sync-results-splitter {
-  background-color: #ebeff9;
+  background-color: rgb(235, 239, 249);
   cursor: col-resize;
-  width: 5px;
 <if expr="is_win">
   /* TODO(akalin): Make the BMM also use this style. */
   cursor: e-resize;
 </if>
+  width: 5px;
 }
 
 #sync-result-details-container {
+  -webkit-box-flex: 1;
   height: 100%;
   overflow: auto;
-  -webkit-box-flex: 1;
-
   /* TODO(akalin): Figure out why this is needed, even with box-flex: 1. */
   width: 100%;
 }