claws-mail/manual/dtd/manual.dsl

<!DOCTYPE style-sheet PUBLIC "-//James Clark//DTD DSSSL Style Sheet//EN" [
<!ENTITY html-ss
  PUBLIC "-//Norman Walsh//DOCUMENT DocBook HTML Stylesheet//EN" CDATA dsssl>
<!ENTITY print-ss
  PUBLIC "-//Norman Walsh//DOCUMENT DocBook Print Stylesheet//EN" CDATA dsssl>
]>
    
<style-sheet>
  <style-specification id="print" use="print-stylesheet">
    <style-specification-body> 
      (define %paper-type% "A4")
      (define %default-quadding% 'justify)
    </style-specification-body>
  </style-specification>
  <style-specification id="html" use="html-stylesheet">
    <style-specification-body> 
    </style-specification-body>
  </style-specification>
  <external-specification id="print-stylesheet" document="print-ss">
  <external-specification id="html-stylesheet" document="html-ss">
</style-sheet>