         <div class="horizontalToolbarSeparator scrollModeButtons"></div>

          <button id="spreadNone" class="secondaryToolbarButton spreadModeButtons spreadNone toggled"
            title="Do not join page spreads" tabindex="65" data-l10n-id="spread_none">
            <span data-l10n-id="spread_none_label">No Spreads</span>
          </button>
          <button id="spreadOdd" class="secondaryToolbarButton spreadModeButtons spreadOdd"
            title="Join page spreads starting with odd-numbered pag