Editing the custom spelling dictionary

chrome/browser/resources/options/language_options.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. */
 
 .language-options {
   display: -webkit-box;
   margin: 10px 0;
 }
 
 .language-options-lower-left button,
@@ skipping 195 matching lines @@
 }
 
 #chewing-max-chi-symbol-len {
   height: 30%;
   width: 100px;
 }
 
 #add-language-overlay-page .content-area {
   padding-bottom: 10px;
 }
+
+.standalone-link-button {
+  padding: 0;
+}