<!doctype HTML>
<html>
<meta charset="utf8">
<title>Content Visibility: hit testing (composited with a composited child)</title>
<link rel="author" title="Vladimir Levin" href="mailto:[email protected]">
<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;
will-change: transform;
}
</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>
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