CrOS OOBE: Fix styling for the enrollment confirmation page.

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

 /* Copyright (c) 2011 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.
  *
  * This is the stylesheet used by the Out of the box experience (OOBE) flow.
  */
 
 body {
   background: -webkit-gradient(radial, center center, 0, center center, 400,
               from(#fefefe), to(#efefef));
@@ skipping 368 matching lines @@
   width: 310px;
 }
 
 #gaia-local-login {
   border: none;
   height: 100%;
   vertical-align: top;
   width: 100%;
 }
 
-#enroll-confirmation-header {
-  font-size: 1.4em;
-  font-weight: bold;
+#enroll-confirmation-screen {
+  bottom: 0;
+  left: 0;
+  position: absolute;
+  right: 0;
+  top: 0;
 }
 
 #enroll-confirmation-content {
   height: 1.5em;
   margin-top: -.75em;
+  position: absolute;
   text-align: center;
   top: 50%;
   width: 100%;
 }
 
 #enroll-confirmation-image {
   vertical-align: middle;
 }
 
 #enroll-confirmation-footer {
@@ skipping 120 matching lines @@
 #version-labels {
   -webkit-transition: all .5s linear;
   bottom: 10px;
   color: #999;
   font-size: 11px;
   left: 10px;
   opacity: 1.0;
   position: absolute;
   text-shadow: 0 1px 1px #fff;
 }