es" tabindex="66" data-l10n-id="spread_odd">
            <span data-l10n-id="spread_odd_label">Odd Spreads</span>
          </button>
          <button id="spreadEven" class="secondaryToolbarButton spreadModeButtons spreadEven"
            title="Join page spreads starting with even-numbered pages" tabindex="67" data-l10n-id="spread_even">
            <span data-l10n-id="spread_even_label">Even Spreads</span>
          </button>

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

  