I'm not an expert on this, and I don't (at the moment) have an XSL-FO processor here to test this, but shouldn't something like this work? (don't take it literally, please)
<fo:block> <fo:block> BLABLABLABLABLABLABLABLABLABLABLABLABLABLABLABLABLABLABLABLA </fo:block> <fo:block-container position="absolute" top="30pt" left="30pt" height="16pt" width="100%"> <fo:block font="48pt Arial" color="red">absolute</fo:block> </fo:block-container> </fo:block>
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