svg-foreignobject-no-size-container.html

<!doctype html>
<title>CSS Container Queries Test: SVG &lt;foreignObject&gt; element not a size query container</title>
<link rel="help" href="https://drafts.csswg.org/css-conditional-5/#size-container">
<link rel="match" href="svg-foreignobject-no-size-container-ref.html">
<style>
  foreignObject {
    display: block;
    width: 100px;
    height: 100px;
    container-type: size;
  }
  @supports not (container-type: size) {
    div { color: red; }
  }
  @container (width = 100px) {
    div { color: red; }
  }
</style>
<p>You should see the word PASS below and no red.</p>
<svg>
  <foreignObject>
    <div id="div">PASS</div>
  </foreignObject>
</svg>

chromium/third_party/blink/web_tests/external/wpt/css/css-conditional/container-queries/svg-foreignobject-no-size-container.html