positioned-element-margin-change.html

<!doctype html>
<style>
    body {
        margin: 0px;
        padding: 0px;
    }
    div {
        position: absolute;
        margin-top: 10px;
    }
</style>
<div id="positioned" data-total-y=50>crbug.com/332860: There's no need to layout an absolute positioned element's parent if its margin changes.</div>
<script src="../../../resources/check-layout.js"></script>
<script>
    document.body.offsetLeft;
    document.getElementById('positioned').style.setProperty("margin-top",'50px');
    checkLayout("#positioned");
</script>

chromium/third_party/blink/web_tests/fast/block/margin-collapse/positioned-element-margin-change.html