<ruleset>
 <theme href="/theme.html" />
 <rule>
  <replace content="children:body" theme="children:#theme-content" nocontent="abort" />
  <replace content="children:title" theme="children:#header" nocontent="ignore" move="0" />
  <replace content="children:#menu" href="/sidebar.html" theme="children:#sidebar" />
 </rule>
</ruleset>
