nested-columns.html | Explore in Territory

<!DOCTYPE html>
<p>The word 'PASSED' should be seen below (writing-mode is vertical-lr).</p>
<div style="width:2em; height:6em; -webkit-columns:3; -webkit-column-gap:0; column-fill:auto; line-height:2em; -webkit-writing-mode:vertical-lr;">
    <div style="-webkit-column-count:2; -webkit-column-gap:0;">
        P<br>A
    </div>
    <div style="-webkit-column-count:2; -webkit-column-gap:0;">
        S<br>S
    </div>
    <div style="-webkit-column-count:2; -webkit-column-gap:0;">
        E<br>D
    </div>
</div>

chromium/third_party/blink/web_tests/fast/multicol/vertical-lr/nested-columns.html