cros: Easy unlock UI broken because of submit button.

ui/login/account_picker/user_pod_row.css

 /* Copyright 2014 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 user pods row of account picker UI.
  */
 
 podrow {
   /* Temporarily disabled because animation interferes with updating screen's
    size. */
@@ skipping 278 matching lines @@
   white-space: nowrap;
 }
 
 .custom-icon {
   -webkit-margin-end: 0;
   -webkit-margin-start: auto;
   background-position: center;
   background-repeat: no-repeat;
   flex: none;
   height: 27px;
+  margin: 8px 0;
   width: 27px;
 }
 
 .custom-icon.faded {
   -webkit-transition: opacity 200ms ease-in-out,
                       visibility 200ms ease-in-out;
 }
 
 .custom-icon-hardlocked {
   background-image: url(chrome://theme/IDR_EASY_UNLOCK_HARDLOCKED);
@@ skipping 97 matching lines @@
 }
 
 .interactive-custom-icon {
   cursor: pointer;
 }
 
 .custom-icon-container {
   display: flex;
   flex: none;
   flex-direction: column;
-  height: 40px;
-  justify-content: center;
-  width: 40px;
+  height: 43px;
+  width: 27px;
 }
 
 .launch-app-button-container {
   display: block;
   flex: auto;
   text-align: center;
 }
 
 .launch-app-button {
   display: inline;
@@ skipping 468 matching lines @@
   -webkit-animation: ellipsis-component2 1.5s infinite;
 }
 
 @-webkit-keyframes ellipsis-component2 {
   0% { opacity: 0; }
   25% { opacity: 0; }
   50% { opacity: 0; }
   75% { opacity: 1; }
   100% { opacity: 0; }
 }