CSS for XSL:FO?

  Hello,
  I have a table for my XSL for XSL:FO
  Is there any way to incorporate CSS so that I don't have to repeat same
style settings for each table header font?
  Thanks for your time..

            <fo:table-cell>
            <fo:block font-family="Helvetica, Arial, sans"
                font-size="11pt" font-weight="bold">
                Factor
            </fo:block>
            </fo:table-cell>

            <fo:table-cell>
            <fo:block font-family="Helvetica, Arial, sans"
                font-size="11pt" font-weight="bold">
                360 Day Rates
            </fo:block>
            </fo:table-cell>

            <fo:table-cell>
            <fo:block font-family="Helvetica, Arial, sans"
                font-size="11pt" font-weight="bold">
                365 Day Rates
            </fo:block>
            </fo:table-cell>


 XSL-List info and archive:  http://www.mulberrytech.com/xsl/xsl-list