<!DOCTYPE html> <link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org"> <link rel="help" href="https://www.w3.org/TR/css-break-3/#unforced-breaks"> <link rel="match" href="../reference/ref-filled-green-100px-square-only.html"> <meta name="assert" content="Three blocks could fit in the first fragmentainer, but there's a break-before:avoid between the third and fourth block, so we should break between the second and third"> <style> .square { height: 50px; break-inside: avoid; background:green; } </style> <p>Test passes if there is a filled green square.</p> <div style="columns:2; column-fill:auto; column-gap:0; width:100px; height:160px;"> <div class="square"></div> <div class="square"></div> <div class="square"></div> <div class="square" style="break-before:avoid;"></div> </div>