The following worked fine for me (although it dopesn't use a DTD)
From: Richard Lander [mailto:[log in to unmask]]
Sent: Tuesday, January 26, 1999 1:21 PM
To: [log in to unmask]
Subject: Re: Shameless plug: "XML: The Annotated Specifications"
You should be able to do what you wish with the following two files.
<?xml version="1.0" standalone="yes"?>
<?xml-stylesheet type="text/css" href="hello.css"?>
This implementation uses CSS. If you want to use XSL, then download the spec
or read a tutorial. Make sure that any XSL information that you read is
dated after August 1998, not 1997.