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<html class="reftest-wait">
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  <title>CSS Multi-column Layout Test: Add the spanner in block1. It should correctly span across all columns</title>
  <link rel="author" title="Ting-Yu Lin" href="tlin@mozilla.com">
  <link rel="author" title="Mozilla" href="http://www.mozilla.org/">
  <link rel="help" href="https://drafts.csswg.org/css-multicol-1/#column-span">
  <link rel="match" href="multicol-span-all-dynamic-add-003-ref.html">
  <meta name="assert" content="This tes