<!DOCTYPE html>
<p>PASS if no crash or assertion failure.</p>
<div style="-webkit-columns:2;">
    <div id="container">
        <div style="-webkit-column-span:all;"></div>
        <div id="abspos" style="position:absolute;"></div>
    </div>
    <div style="-webkit-column-span:all;"></div>
</div>
<script>
    if (window.testRunner)
        testRunner.dumpAsText();
    document.body.offsetTop;
    document.getElementById("container").style.position = "relative";
    document.body.offsetTop;
    document.getElementById("abspos").style.display = "none";
</script>