<!doctype html>
<html class="reftest-wait">
<title>CSS Transforms: 'transform' resolved percentage values in SVG after mutation</title>
<link rel="help" href="https://drafts.csswg.org/css-transforms/#transform-property">
<link rel="match" href="transform-box/reference/greensquare200x200.html">
<script src="/common/reftest-wait.js"></script>
<script src="/common/rendering-utils.js"></script>
<style>
  #container {
    width: 400px;
    height: 200px;
  }
</style>
<p>There should be a green 200x200 rectangle below, and no red.</p>
<div id="container">
  <svg width="100%" height="100%">
    <rect width="200" height="200" fill="red"/>
    <g id="target" style="transform: translate(50%, 50%)">
      <rect x="-100" y="-100" width="100%" height="100%" fill="green"/>
    </g>
  </svg>
</div>
<script>
  waitForAtLeastOneFrame().then(() => {
    document.getElementById('container').style.width = '200px';
    takeScreenshot();
  });
</script>