table-cell-content-change-000-ref.html

<!DOCTYPE html>
<p>You should see the text "first column" once in the first column, and the text
  "second column" twice in the second column.</p>
<div style="columns:2; orphans:1; widows:1;">
  first column<br>
  <br>
  second column<br>
  second column
</div>

chromium/third_party/blink/web_tests/external/wpt/css/css-multicol/table/table-cell-content-change-000-ref.html