aspect-ratio-feature-evaluation.html

Enable keyboard shortcuts

This WPT test may be referenced by the following Test IDs:
- /css/css-conditional/container-queries/aspect-ratio-feature-evaluation.html - WPT Dashboard Interop Dashboard

<!doctype html>

<title>@container queries with aspect-ratio</title>

<link rel="help" href="https://drafts.csswg.org/css-conditional-5/#aspect-ratio">

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<script src="support/cq-testcommon.js"></script>

<style>

  .container {

    width: 100px;

    height: 100px;

  #inline-size { container-type: inline-size; }

  #size { container-type: size; }

  span { color: red }

  @container (min-aspect-ratio: 1 / 1000) {

    span { color: green; }

  @container (min-aspect-ratio: 2 / 1) {

    span { background-color: lime; }

</style>

<div id="inline-size" class="container"><span></span></div>

<div id="size" class="container"><span></span></div>

<script>

  setup(() => assert_implements_size_container_queries());

  const red = "rgb(255, 0, 0)";

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

  const lime = "rgb(0, 255, 0)";

  const transparent = "rgba(0, 0, 0, 0)";

  const inline_span = document.querySelector("#inline-size > span");

  const size_span = document.querySelector("#size > span");

  test(() => {

    assert_equals(getComputedStyle(inline_span).color, red,

                  "Should not match for inline-size containment");

    assert_equals(getComputedStyle(size_span).color, green,

                  "Should match for block-size containment");

    assert_equals(getComputedStyle(size_span).backgroundColor, transparent,

                  "Square should not match 2/1 min-ratio");

  }, "@container queries with aspect-ratio and size containment");

  test(() => {

    document.querySelector("#size").style.width = "200px";

    assert_equals(getComputedStyle(size_span).backgroundColor, lime,

                  "Should match 2/1 min-ratio");

  }, "@container query with aspect-ratio change after resize");

</script>