<!DOCTYPE html>
<p>Test changing a regular block with inline children into a multicol container, and then add a block.</p>
<p>PASS if no crash.</p>
<div id="container">
    &nbsp;
    <script>
        if (window.testRunner)
            testRunner.dumpAsText();
        document.body.offsetTop;
        document.getElementById("container").style.webkitColumns = '3';
        document.body.offsetTop;
    </script>
    <p></p>
</div>