<html>
Test passes if it does not crash.
<div id="test1" style="width: 12px; position: relative">
    <span>
        <div id="test2">
            <p style="float: left"></p>
        </div>
    </span>
    <div id="test3">
        <span>
            <p>A A</p>
        </span>
    </div>
</div>
<script>
    if (window.testRunner)
        testRunner.dumpAsText();

    document.body.offsetTop;
    test3.style.position = 'absolute';
    test2.style.position = 'absolute';
    document.body.offsetTop;
    test1.style.height = '1';
    test2.style.display = 'none';
</script>
</html>