chromium/third_party/blink/web_tests/fast/multicol/first-line-in-block-with-padding.html

<!DOCTYPE html>
<script src="../../resources/check-layout.js"></script>
<p>When its first line needs a column break, test that we push the entire block to the next column.</p>
<p>There should be a blue square below.</p>
<div id="multicol" style="position:relative; -webkit-columns:2; -webkit-column-gap:0; column-fill:auto; width:6em; height:3em; line-height:2em;">
    <br>
    <div data-offset-y="0" style="padding-top:1em; background:blue;"><br></div>
</div>
<script>
    checkLayout("#multicol");
</script>