svg-list-image-intrinsic-size-1.html

<!DOCTYPE html>
<title>Intrinsic size on SVG in list-image</title>
<style>
  li { list-style-image: url('data:image/svg+xml,<svg width="30px" height="1px" xmlns="http://www.w3.org/2000/svg"><line x2="30" stroke-width="2" stroke="black"/></svg>'); }
</style>
<ul>
  <li>Bullet 1</li>
  <li>Bullet 2</li>
</ul>

chromium/third_party/blink/web_tests/svg/as-list-image/svg-list-image-intrinsic-size-1.html