<!DOCTYPE html>
<title>CSS Position Absolute: dynamic changes to containing block height</title>
<link rel="author" href="mailto:[email protected]">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=933054">
<meta name="assert" content="Chrome regression: abspos descendant responds to containing block size change through line items">
<style>
#container {
position: relative;
}
#intermediate {
overflow: hidden;
width:200px;
height:200px;
background:red;
}
#block {
height:200px;
background:green;
}
#target {
position: absolute;
width: 200px;
height: 100px;
background:green;
}
</style>
<!-- Test for crbug.com/933054
Relayout optimizations cause OOF descendant not to be
repositioned
-->
<div id="container">
<div id="intermediate">
<div id="block"></div>
<div id="target"></div>
</div>
</div>
<script>
document.body.offsetTop;
test(() => {
document.getElementById("block").style.height = "100px";
assert_equals(document.querySelector("#target").offsetTop, 100);
}, '#target static position responded to parent relayout');
</script>
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