<!doctype HTML>
<html>
<meta charset="utf8">
<title>Content Visibility: hit testing (composited)</title>
<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
<link rel="help" href="https://drafts.csswg.org/css-contain/#content-visibility">
<meta name="assert" content="content-visibility hidden prevents hit-testing in the subtree">

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

<style>
body {
  margin: 0;
  padding: 0;
}
#outer {
  width: 100px;
  height: 100px;
  background: lightblue;

  content-visibility: hidden;
  will-change: transform;
}
#inner {
  margin: 25px;
  width: 50px;
  height: 50px;
  background lightgreen;
}
</style>

<body id="body">
<div id="outer"><div id="inner"></div></div>
</body>

<script>
async_test((t) => {
  const container = document.getElementById("outer");

  let target = document.elementFromPoint(50, 50);
  t.step(() => assert_equals(target.id, "outer", "center hits outer"));
  target = document.elementFromPoint(10, 50);
  t.step(() => assert_equals(target.id, "outer", "edge hits outer"));
  target = document.elementFromPoint(100, 50);
  t.step(() => assert_equals(target.id, "body", "elsewhere hits body"));
  t.done();
});

</script>
</html>
