<?xml version="1.0" encoding="UTF-8"?>
<fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format">
<fo:layout-master-set>
<fo:simple-page-master master-name="A4"
page-width="210mm"
page-height="297mm"
margin="20mm">
<fo:region-body/>
</fo:simple-page-master>
</fo:layout-master-set>
<fo:page-sequence master-reference="A4">
<fo:flow flow-name="xsl-region-body">
<fo:block margin-left="0pt">
Level 1
<fo:block margin-left="10pt">
Level 2
<fo:block margin-left="10pt">
Level 3
<fo:block margin-left="10pt">
Level 4
<fo:block margin-left="10pt">
Level 5
<fo:block margin-left="10pt">
Level 6
<fo:block margin-left="10pt">
Level 7
<fo:block margin-left="10pt">
Level 8
<fo:block margin-left="10pt">
Level 9
<fo:block margin-left="10pt">
Level 10 (deeply nested)
</fo:block>
</fo:block>
</fo:block>
</fo:block>
</fo:block>
</fo:block>
</fo:block>
</fo:block>
</fo:block>
</fo:block>
</fo:flow>
</fo:page-sequence>
</fo:root>