css/css-display/display-contents-multicol-001.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Test: CSS display:contents in multicolumn layout</title>
<!-- Imported from: https://bugzilla.mozilla.org/show_bug.cgi?id=907396 -->
<link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
<link rel="author" title="Emilio Cobos Álvarez" href="mailto:ecobos@igalia.com">
<link rel="help" href="https://drafts.csswg.org/css-display-3/#valdef-display-contents">
<link rel="match" href="display-contents-multicol-001-ref.html">
<link rel="stylesheet" href="support/acid.css">
<div style="color: red">
  <div class="columns">
  <div class="contents c1"><div class="contents c2"><div>1<span class="b">1</span></div></div></div>
  <div class="contents c2"><div>2</div></div>
  <div class="contents c3"><div>3</div></div>
  </div>

  <div class="columns">
  <div class="columns contents">
  <div class="contents c1"><div class="contents c2"><div>1<span class="b">1</span></div></div></div>
  <div class="contents c2"><div>2</div></div>
  <div class="contents c3"><div>3</div></div>
  </div>
  </div>
</div>