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Test Info:

<!DOCTYPE html>
<link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
<meta name="assert" content="Margins of two adjacent spanners will collapse with each other">
<link rel="match" href="../reference/ref-filled-green-100px-square-only.html">
<style>
#spanner1 {
column-span: all;
margin-bottom: 100px;
}
#spanner2 {
column-span: all;
margin-top: 100px;
}
</style>
<p>Test passes if there is a filled green square.</p>
<div style="columns:3; width:100px; background:green;">
<div id="spanner1"></div>
<span id="inlineWithBlock"><div></div></span><div id="spanner2"></div>
</div>
<script>
document.body.offsetTop;
inlineWithBlock.style.display = "none";
</script>