chromium/third_party/blink/web_tests/svg/custom/hover-default-fill.svg

<svg xmlns="http://www.w3.org/2000/svg" width="100px" height="100px">
<style type="text/css">
  rect:hover {fill:green;}
</style>
<rect width="100" height="100"/>
<script type="text/javascript">
<![CDATA[
  if (window.eventSender) {
    eventSender.mouseMoveTo(50, 50);
    eventSender.mouseDown();
    eventSender.mouseUp();
  }
]]>
</script>
</svg>