<?xml version="1.0" standalone="yes"?>
<svg xmlns="http://www.w3.org/2000/svg">
    <!-- The FO <body> background should cover this red rect -->
    <rect x="20" y="20" width="200" height="100" fill="red"/>
    <foreignObject  x="20" y="20" width="200" height="100">
      <html xmlns="http://www.w3.org/1999/xhtml">
        <body style="background-color: green; margin: 0px;">
          <div style="height: 100px;"></div>
        </body>
      </html>
    </foreignObject>
</svg>