ChromeOS Gaia: UI polishing

chrome/browser/resources/chromeos/login/gaia_card.css

 /* Copyright 2015 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.
  */
 
 :host {
   height: 528px;
   width: 448px;
 }
 
@@ skipping 38 matching lines @@
   background: rgb(217, 221, 234);
 }
 
 ::content /deep/ .link-button::shadow .button-content {
   padding: 0;
 }
 
 ::content /deep/ p.gaia-body-text {
   color: rgba(0, 0, 0, 0.87);
   font-size: 14px;
+  line-height: 20px;
   margin: 0;
 }
 
 ::content /deep/ p.email,
 ::content /deep/ p.enterprise-info {
   color: rgb(255, 255, 255);
   font-size: 15px;
   margin: 8px 0 0 0;
 }
 
@@ skipping 21 matching lines @@
 }
 
 #progress-bar::shadow #activeProgress {
   background-color: rgb(255, 184, 9);
 }
 
 :host(.disabled) #bottom-overlay,
 :host(.disabled) #progress-bar {
   display: block;
 }