<?xml version="1.0"?>
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.0//EN" "http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd">
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xhtml="http://www.w3.org/1999/xhtml" viewBox="0 0 100 100">
    <foreignObject width="100" height="100">
        <style>a div { background-color: green; width: 100px; height: 100px } a:link div, a:visited div { background-color: red }</style>
        <xhtml:a href="http://www.example.com/"><xhtml:div></xhtml:div></xhtml:a>
    </foreignObject>
</svg>