ram okolo stranky ve FOP

[Tomas Zalusky]

Dobry den, 
pracuji s procesorem FOP 0.20.5 a potrebuju docilit ramu okolo tela stranky.
Bohuzel at pisu do region-body cokoli, neprojevuje se to. Pritom ze stranek http://xml.apache.org/fop/compliance.html#fo-object-region-body plyne, ze by to mel zvladnout.
Mohl by mi nekdo poradit, zda nekde delam chybu nebo zda je to problem FOPu? Prikladam ukazku, ktera mi nechodi. 
Diky za kazdou odpoved. 
Tomas Zalusky 

<?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="simpleA4" page-height="29.7cm" page-width="21cm" margin-top="2cm" margin-bottom="2cm" margin-left="2cm" margin-right="2cm"> 
<fo:region-body border="1mm solid black" /> 
</fo:simple-page-master> 
</fo:layout-master-set> 
<fo:page-sequence master-reference="simpleA4"> 
<fo:flow flow-name="xsl-region-body"> 
<fo:block>Hello World!</fo:block> 
</fo:flow> 
</fo:page-sequence> 
</fo:root>