<rules
    xmlns="http://namespaces.plone.org/diazo"
    xmlns:css="http://namespaces.plone.org/diazo/css"
    xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
    >

    <replace
        css:theme="#messages"
        css:content=".message"
        method="raw"
        />

    <drop
        css:content="#source-content .message"
        />

    <replace
        css:theme="#target-content"
        css:content="#source-content"
        />

</rules>
