<!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="Need to violate break-before:avoid and break-after:avoid if there are no better breakpoints"> <style> .container { break-before: avoid; break-after: avoid; } .square { display: inline-block; vertical-align: top; width: 100%; height: 50px; 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:120px;"> <div class="container"> <div class="square"></div> </div> <div class="container"> <div class="square"></div> </div> <div class="container"> <div class="square"></div> </div> <div class="container"> <div class="square"></div> </div> </div>