Incognito NTP style tweaks

chrome/browser/resources/ntp4/incognito_tab.css

 /* Copyright 2013 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. */
 
+body {
+  margin-top: 0;
+}
+
 .content {
   background-color: #323232;
   color: white;
+  font-family: Roboto;
 }
 
 .icon {
   content: url(../../../../ui/webui/resources/images/incognito_splash.svg);
   display: inline-block;
   height: 120px;
   width: 120px;
 }
 
 h1 {
   margin-top: 1em;
 }
 
 a {
   color: rgb(3, 169, 244);
+  display: inline-block;
 }