ntp4: fix positioning of notification bar

chrome/browser/resources/ntp4/new_tab.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.
  */
 
 html {
   font-family: segoe ui, arial, helvetica, sans-serif;
   font-size: 14px;
   /* It's necessary to put this here instead of in body in order to get the
      background-size of 100% to work properly */
   height: 100%;
   overflow: hidden;
 }
 
 body {
   background-size: auto 100%;
   margin: 0;
   /* Don't highlight links when they're tapped.  Safari has bugs here that
      show up as flicker when dragging in some situations */
   -webkit-tap-highlight-color: transparent;
   /* Don't allow selecting text - can occur when dragging */
   -webkit-user-select: none;
 }
 
 /* [hidden] does display:none, but its priority is too low in some cases. */
 [hidden], .hidden {
   display: none !important;
 }
 
+#notification-container {
+  display: block;
+  margin-top: 2px;
+  position: relative;
+  text-align: center;
+  z-index: 100;
+  -webkit-transition-duration: 0.1s;
+  -webkit-transition-property: opacity;
+}
+
+#notification-container.inactive {
+  opacity: 0;
+  -webkit-transition-duration: 0.2s;
+}
+
 #notification {
   background-color: #FFF199;
   border: 1px solid lightGrey;
   border-radius: 6px;
   color: black;
   display: inline-block;
   font-weight: bold;
-  margin-top: 2px;
-  opacity: 100%;
   padding: 7px 15px;
-  position: relative;
-  z-index: 100;
-  -webkit-transition-duration: 0.1s;
-  -webkit-transition-property: opacity;
-}
-
-#notification.inactive {
-  display: inline-block;
-  opacity: 0;
-  -webkit-transition-duration: 0.2s;
 }
 
 #notification > div > div,
 #notification > div {
   display: inline-block;
 }
 
 #notification .close-button {
   vertical-align: middle;
   -webkit-margin-start: 0.5em;
@@ skipping 154 matching lines @@
   min-width: 90px;
   top: 0;
   z-index: 5;
   -webkit-transition: width 150ms, right 150ms, background-color 150ms;
 }
 
 .page-switcher:hover,
 .page-switcher.drag-target {
   background-color: rgba(0, 0, 0, 0.2);
 }