chromium/third_party/blink/web_tests/svg/stroke/stroke-width-rem-type.svg

<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" height="100" width="100" style="font-size:20px">
  <line x1="0" y1="0" x2="100" y2="100" stroke="rgb(255,0,0)" stroke-width="1rem" />
</svg>