File: content-visibility-with-top-layer-004.html

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<!doctype html>
<html class="reftest-wait">
<meta charset="utf8">
<title>CSS Content Visibility: dialog shows under c-v auto</title>
<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
<link rel="help" href="https://drafts.csswg.org/css-contain/#content-visibility">
<link rel="match" href="spacer-with-top-layer-ref.html">
<meta name="assert" content="top layer dialogs render under c-v auto">

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

<style>
.box { width: 100px; height: 100px; border: 1px solid black; }
.auto { content-visibility: auto }
.spacer { width: 10px; height: 3000px; background: lightblue; }
</style>

<div class=spacer></div>
<div id=container class="box auto">
content
<dialog id=dialog>PASS<div id=inner></div></dialog>
</div>

<script>
function runTest() {
  dialog.showModal();
  takeScreenshot();
}

onload = () => requestAnimationFrame(() => requestAnimationFrame(runTest));
</script>