[ntp4] More UI refinements.

chrome/browser/resources/ntp4/bookmarks_page.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.
  */
 
 /* Bookmark Tiles ************************************************************/
 
 .bookmark {
   display: -webkit-box;
   position: absolute;
@@ skipping 23 matching lines @@
   right: auto;
 }
 
 .bookmark:hover .close-button {
   opacity: 1;
   -webkit-transition-delay: 0.5s;
 }
 
 .bookmark .favicon {
   background: no-repeat 5% 90%;
+  background-size: 16px;
 }
 
 .bookmark .color-stripe {
   border-bottom-left-radius: 3px 3px;
   border-bottom-right-radius: 3px 3px;
-  bottom: 33px;
+  bottom: 31px;
   height: 3px;
-  opacity: 0.5;
   position: absolute;
   width: 100%;
   z-index: 100;
 }
 
 .bookmark .title {
   cursor: pointer;
   display: block;
   height: 23px;
   line-height: 23px;
   overflow: hidden;
-  padding-top: 10px;
+  padding-top: 8px;
   text-align: center;
   text-decoration: none;
   text-overflow: ellipsis;
   white-space: nowrap;
 }
 
 .bookmark .button {
   cursor: pointer;
   background-color: rgba(0, 0, 0, 0.15);
   border: 1px solid transparent;
@@ skipping 80 matching lines @@
   background: -webkit-canvas(bookmark-chevron) center center no-repeat;
   border: 0;
   height: 44px;
   margin: 2px 0;
   width: 10px;
 }
 
 .bookmarks-manager-link-container {
   height: 40px;
 }