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Test Info:

<!DOCTYPE html>
<link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
<div style="columns:2;">
<span>
<div></div>
</span>
<div id="elm"></div>
x
</div>
<script>
document.body.offsetTop;
elm.style.display = "none";
</script>