Use proportional line height for menu items to prevent clipping.

chrome/browser/resources/uber/uber_frame.css

 /* Copyright (c) 2012 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 {
   overflow: hidden;
   padding-top: 20px;
 }
 
 html.changing-content body {
@@ skipping 33 matching lines @@
 #helpNavItem {
   margin-top: 27px;
 }
 
 button {
   background-color: white;
   border: 0;
   color: #999;
   cursor: pointer;
   font: inherit;
-  line-height: 17px;
+  line-height: 1.45em;

[Dan Beam, 2013/11/20 07:21:36]

line-height: 1.417em;  /* 17px based on default 12px font size. */

   margin: 6px 0;
   padding: 0;
 }
 
 .selected > button {
   color: rgb(70, 78, 90);
 }