chromium/third_party/blink/web_tests/svg/hixie/viewbox/001.xml

<svg width="300" height="200" viewBox="0 0 2 2" xmlns="http://www.w3.org/2000/svg">
 <!-- the 'stroke-width' property defaults to '1' -->
 <rect x="0.5" y="0.5" width="1" height="1" stroke="green" fill="red"/>
</svg>