chromium/third_party/blink/web_tests/paint/invalidation/multicol/multicol-with-block.html

<!DOCTYPE html>
<script src="../../../resources/ahem.js"></script>
<script src="../resources/text-based-repaint.js"></script>
<script>
    onload = runRepaintAndPixelTest;
    function repaintTest() {
        var target = document.getElementById('target');
        target.style.visibility = 'visible';
    }
</script>
<div style="-webkit-columns:4; -webkit-column-gap:10px; column-fill:auto; width:630px; height:20px; font:20px/1 ahem; orphans:1; widows:1; color:green;">
    <br>
    <br>
    <br>
    <div id="target" style="visibility:hidden;">PASS</div>
</div>
<p>A green rectangle should be seen above.</p>