Incognito NTP style tweaks

chrome/browser/resources/ntp4/incognito_and_guest_tab.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.
  *
  * Incognito and guest mode NTP shared CSS.
  */
 
 h1 {
   font-size: 200%;
-  font-weight: normal;
+  font-weight: 300;
   margin-bottom: 1.33em;
 }
 
 p {
-  line-height: 1.7;
+  line-height: 1.5;
   margin-bottom: 2em;
   text-align: start;
 }
 
 a {
   font-size: 108.3%;
   text-decoration: none;
   text-transform: uppercase;
 }
 
 a:hover {
   text-decoration: underline;
 }
 
 .content {
   box-sizing: border-box;
+  font-family: Roboto;

[Dan Beam, 2016/01/12 23:05:52]

do you need this if you're pulling in text_defaults_md.css?  or if that's not
working, can this be `font-family: inherit` instead?

[edwardjung, 2016/01/13 21:24:07]

Removed, it's working without. 

   margin: 3.5em auto 0;
+  max-width: 420px;
+  min-width: 240px;
   padding: 30px 35px;
   text-align: center;
-  width: 420px;
 }
 
 html[hascustombackground='true'] .content {
   border-radius: 2px;
   box-shadow: 0 4px 6px 1px rgba(0, 0, 0, 0.4);
 }
 
 .content > span {
   display: block;
 }
 
 @media (max-width:700px) {
   body {
     margin: 1em 2em 2em;
   }
 }
 
 @media (max-width:400px) {
   body {
     margin: 3em 1.5em 2em;
   }
+
+  /* Adjustment for narrow screen to prevent horizontal scrollbar. */
+  .content {
+    padding: 16px 8px;
+  }
 }
 
 @media (max-height:480px) and (max-width:400px) {
   .content {
     margin: auto;
   }
 }