File: svg-root-size-container.html

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<!doctype html>
<title>CSS Container Queries Test: SVG root as a size query container</title>
<link rel="help" href="https://drafts.csswg.org/css-contain-3/#size-container">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="support/cq-testcommon.js"></script>
<style>
  svg {
    display: block;
    width: 100px;
    height: 100px;
    container-type: size;
  }
  @container (width = 100px) {
    #div, #text { color: green; }
  }
</style>
<svg>
  <text id="text">Green</text>
  <foreignObject>
    <div id="div">Green</div>
  </foreignObject>
</svg>
<script>
  setup(() => assert_implements_container_queries());

  const green = "rgb(0, 128, 0)";

  test(() => {
    assert_equals(getComputedStyle(text).color, green);
  }, "SVG text querying SVG root size container");

  test(() => {
    assert_equals(getComputedStyle(div).color, green);
  }, "div in foreignObject querying SVG root size container");
</script>