size-change-under-backface-visibility-hidden.html

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This WPT test may be referenced by the following Test IDs:
- /css/css-transforms/size-change-under-backface-visibility-hidden.html - WPT Dashboard Interop Dashboard

<!doctype HTML>

<html class="reftest-wait">

  <title>CSS Test: Test for re-paint after resizing an element underneath a backface-visibility hidden element</title>

  <link rel="author" title="Chris Harrelson" href="mailto:chrishtr@chromium.org" />

  <link rel="help" href="https://drafts.csswg.org/css-transforms-2/#propdef-backface-visibility">

  <link rel="match" href="size-change-under-backface-visibility-hidden-ref.html">

  <script src="/common/reftest-wait.js"></script>

  Passes if it shows a green 200x200 square.

  <div style="will-change: transform; width: 300px; height: 0px">

    <div style="width: 1px; height: 1px; backface-visibility: hidden;">

      <div id=target style="width: 200px; height: 0px; position: relative; background: green; left: 10px;"></div>

    </div>

  </div>

  <script>

    onload = function() {

      requestAnimationFrame(() => requestAnimationFrame(() => {

        target.style.height = '200px';

        takeScreenshot();

      }));

};

  </script>

</html>