se/SE/stuff/dita-ot-3.3.3/docsrc/samples/plugins/com.example.html5-custom-css/plugin.xml

<?xml version="1.0" encoding="UTF-8"?>
<?xml-model href="dita-ot/plugin.rnc" type="application/relax-ng-compact-syntax"?>

<plugin id="com.example.html5-custom-css">
  <require plugin="org.dita.html5"/>
  <transtype name="html5-custom-css" extends="html5" desc="HTML5 with custom CSS"/>
  <feature extension="ant.import" file="build_html5-custom-css.xml"/>
</plugin>