css/css-will-change/will-change-transform-add-content.html

<!DOCTYPE html>
<html class="reftest-wait">
<link rel="help" href="https://drafts.csswg.org/css-will-change/#will-change">
<link rel="match" href="will-change-transform-add-content-ref.html">
<script src="/common/reftest-wait.js"></script>
<script src="/common/rendering-utils.js"></script>
<div id="target" style="width: 200px; height: 100px; will-change: transform"></div>
<script>
waitForAtLeastOneFrame().then(() => {
  target.textContent = 'This text should be visible.';
  takeScreenshot();
});
</script>