&lt;!DOCTYPE important PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
          "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"&gt;
&lt;important&gt;
&lt;para&gt;
No user-servicable parts inside. Breaking this seal voids all warranties.
&lt;/para&gt;
&lt;/important&gt;