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<!doctype HTML>
<html>
<meta charset="utf8">
<title>Content Visibility: clientLeft/clientTop/clientWidth/clientHeight measure correctly</title>
<link rel="author" title="Rob Buis" href="mailto:rbuis@igalia.com">
<link rel="help" href="https://drafts.csswg.org/css-contain/#content-visibility">
<meta name="assert" content="clientLeft/clientTop/clientWidth/clientHeight measure correctly in content-visibility hidden 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;
}
#inner {
border-left: 25px black solid;
border-top: 25px black solid;
margin: 25px;
width: 50px;
height: 50px;
background: lightgreen;
}
</style>
<body>
<div id="outer"><div id="inner"></div></div>
</body>
<script>
test(() => {
const inner = document.getElementById("inner");
inner.style.borderLeftWidth = "20px";
assert_equals(inner.clientLeft, 20, "left");
inner.style.borderTopWidth = "20px";
assert_equals(inner.clientTop, 20, "top");
inner.style.width = "40px";
assert_equals(inner.clientWidth, 40, "width");
inner.style.height = "40px";
assert_equals(inner.clientHeight, 40, "height");
});
</script>
</html>
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