<xsl:variable name="VAR_pagewidth" select="'21cm'"/>

<fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format">

    <fo:layout-master-set>
            <fo:simple-page-master master-name="first-page" page-height="29.7cm" page-width="$VAR_pagewidth" margin-top="0.5cm"  margin-bottom="1cm">
                <fo:region-body margin-top="15mm" margin-left="16mm" margin-right="26mm" margin-bottom="45mm"/>
                <fo:region-before region-name="header-first" extent="0mm" margin-left="1mm" margin-right="0mm" />
                <fo:region-after region-name="footer-normal" extent="42mm" />
                <fo:region-end border-top-width="5pt" region-name="right-sidebar" writing-mode="tb-rl" extent="10mm" />
            </fo:simple-page-master>

    </fo:layout-master-set>