chromium/third_party/blink/web_tests/svg/hixie/viewbox/004.xml

<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1000 400">
 <desc>This should just be one big green rectangle.</desc>
 <rect x="0" y="0" width="1000" height="400" fill="green"/>
</svg>