chromium/third_party/blink/web_tests/svg/dom/resources/svg-with-animate.svg

<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
  <rect x="10" y="10" width="10" height="10" fill="red">
    <animate attributeName="x" attributeType="XML" begin="0s" dur="10s" fill="freeze" from="0" to="100" />
  </rect>
</svg>