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<!doctype HTML>
<html>
<meta charset="utf8">
<meta name="viewport" content="width=device-width,initial-scale=1">
<title>Content Visibility: scrollLeft/scrollTop/scrollWidth/scrollHeight 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="scrollLeft/scrollTop/scrollWidth/scrollHeight 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;
overflow: scroll;
content-visibility: hidden;
}
#inner {
margin: 25px;
width: 250px;
height: 250px;
background: lightgreen;
}
</style>
<body>
<div id="outer"><div id="inner"></div></div>
</body>
<script>
test(() => {
const outer = document.getElementById("outer");
outer.scrollLeft = 25;
assert_equals(outer.scrollLeft, 25, "left");
assert_equals(outer.scrollWidth, 275, "width");
outer.scrollTop = 25;
assert_equals(outer.scrollTop, 25, "top");
assert_equals(outer.scrollHeight, 300, "height");
});
</script>
</html>
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