PASS if no crash or assert.
<ruby><rtc><span><details open="false"><span id=span2></span></details></span><div id=div3></div></rtc><rt id=rt2></rt></ruby><script>
document.body.offsetHeight;
rt2.remove();
span2.remove();
document.body.offsetHeight;
div3.style.cssText = "column-span: all";
if (window.testRunner)
    testRunner.dumpAsText();
</script>