&lt;!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
          "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd"&gt;
&lt;sect1&gt;&lt;title&gt;An Example Section&lt;/title&gt;

&lt;para&gt;
Some narrative text.
&lt;/para&gt;

&lt;sidebar&gt;&lt;title&gt;A Sidebar&lt;/title&gt;
&lt;para&gt;
Sidebar content.
&lt;/para&gt;
&lt;/sidebar&gt;

&lt;para&gt;
The continuing flow of the narrative text, as if the
sidebar was not present.
&lt;/para&gt;

&lt;/sect1&gt;