">
    <div id="sidebarContainer">
      <div id="toolbarSidebar">
        <div id="toolbarSidebarLeft">
          <div class="splitToolbarButton toggled">
            <button id="viewThumbnail" class="toolbarButton toggled" title="Show Thumbnails" tabindex="2"
              data-l10n-id="thumbs">
              <span data-l10n-id="thumbs_label">Thumbnails</span>
            </button>
            <button id="viewOutline" class="toolbarButton"
              title="Show Document Outline (double-click to expand