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chromium/third_party/blink/web_tests/fragmentation/single-line-cells-multiple-tables-caption-repeating-thead-with-border-spacing-at-top-of-row-3.html 

<!DOCTYPE html>
<style>
td, th {
    background-color: #ddd;
    border: 1px solid black;
}
thead, tr {
    break-inside: avoid;
}
</style>
<p>crbug.com/642814: A row positioned naturally at the top of a column should move below any repeating table header.</p>
<div style="columns:3; line-height: 18px; column-fill: auto; height:74px; background-color: yellow;">
    <table>
        <caption style="caption-side: top;">Caption</caption>
        <thead>
            <tr>
                <th>Col 1</th>
                <th>Col 2</th>
            </tr>
        </thead>
        <tr><td>Te</td><td>xt</td></tr>
    </table>
    <table>
        <caption style="caption-side: top;">Caption</caption>
        <thead>
            <tr>
                <th>Col 3</th>
                <th>Col 4</th>
            </tr>
        </thead>
        <tr><td>Te</td><td>xt</td></tr>
    </table>
</div>