display-none-to-display-block.html | Explore in Territory

<!DOCTYPE html>
<html class="reftest-wait">
<link rel="author" title="Tim Nguyen" href="https://github.com/nt1m">
<link rel="help" href="https://drafts.csswg.org/css-display-4/#display-animation">
<link rel="help" href="https://github.com/w3c/csswg-drafts/issues/6429">
<link rel="match" href="/css/reference/ref-filled-green-100px-square.xht">
<style>
@keyframes display-animation {
  0% { display: none; }
  100% { display: block; }
}
#target {
  display: none;
  width: 100px;
  height: 100px;
  background-color: green;
}
#target.animate {
  animation: display-animation 1s;
  display: block;
}
</style>
<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
<div id="target"></div>
<script src="/css/css-animations/support/testcommon.js"></script>
<script>
onload = async () => {
  await waitForAnimationFrames(1);
  target.classList.add("animate");
  await waitForAnimationFrames(2);
  document.documentElement.classList.remove("reftest-wait");
};
</script>
</html>

chromium/third_party/blink/web_tests/external/wpt/css/css-animations/display-none-to-display-block.html