gecko/mobile/android/base/resources/values-large-v11/styles.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- This Source Code Form is subject to the terms of the Mozilla Public
   - License, v. 2.0. If a copy of the MPL was not distributed with this
   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->

<resources>

    <style name="AboutHome.Thumbnail">
      <item name="android:layout_width">fill_parent</item>
      <item name="android:layout_height">fill_parent</item>
      <item name="android:paddingTop">12dip</item>
      <item name="android:paddingBottom">12dip</item>
      <item name="android:paddingLeft">12dip</item>
      <item name="android:paddingRight">12dip</item>
    </style>

    <style name="AboutHome.Thumbnail.Grid">
      <item name="android:layout_width">fill_parent</item>
      <item name="android:layout_height">wrap_content</item>
      <!-- Use padding instead of grid spacing to split up items so that
           tap highlight will extend outside the thumbnail -->
      <item name="android:verticalSpacing">0dip</item>
      <item name="android:horizontalSpacing">0dip</item>
      <item name="android:isScrollContainer">false</item>
      <item name="android:gravity">center</item>
      <item name="android:listSelector">@drawable/action_bar_button</item>
      <item name="android:paddingTop">0dip</item>
      <item name="android:paddingBottom">0dip</item>
      <!-- Increase the padding on left and right on large screen sizes -->
      <item name="android:paddingLeft">60dip</item>
      <item name="android:paddingRight">60dip</item>
    </style>

    <style name="AddressBar.ImageButton.Forward">
        <item name="android:contentDescription">@string/forward</item>
        <item name="android:layout_width">64dip</item>
        <item name="android:layout_height">38dip</item>
        <item name="android:paddingLeft">26dp</item>
        <item name="android:paddingTop">7dp</item>
        <item name="android:paddingBottom">7dp</item>
        <item name="android:layout_gravity">center_vertical</item>
        <item name="android:layout_centerVertical">true</item>
        <item name="android:src">@drawable/ic_menu_forward</item>
        <item name="android:background">@drawable/address_bar_nav_button</item>
        <!-- Start with the button hidden -->
        <item name="android:alpha">0</item>
        <item name="android:layout_marginLeft">@dimen/forward_default_offset</item>
    </style>

   <style name="AddressBar.Button.Container">
        <item name="android:layout_marginTop">6dp</item>
        <item name="android:layout_marginBottom">6dp</item>
        <item name="android:layout_marginRight">0dp</item>
        <!-- Start with forward hidden -->
        <item name="android:layout_marginLeft">@dimen/addressbar_offset_left_noforward</item>
        <item name="android:orientation">horizontal</item>
    </style>

    <style name="TabsList" parent="TabsListBase">
         <item name="android:orientation">horizontal</item>
    </style>

</resources>