<!DOCTYPE html> <title> Multi-line column flex fragmentation. </title> <link rel="help" href="https://drafts.csswg.org/css-flexbox-1/#pagination"> <link rel="match" href="../../reference/ref-filled-green-100px-square.xht"> <style> .multicol { background: red; column-count: 2; column-fill: auto; column-gap: 0px; height: 100px; width: 100px; } .flex { display: flex; flex-direction: column; flex-wrap: wrap; height: 200px; width: 50px; position: relative; } .flex > div { background: green; width: 25px; } </style> <p>Test passes if there is a filled green square and <strong>no red</strong>.</p> <div class="multicol"> <div class="flex"> <div style="position: absolute; top: 50px; left: 25px; height: 150px;"></div> <div style="height: 150px;"></div> <div style="height: 25px;"></div> <div style="height: 25px;"></div> <div style="height: 50px;"></div> </div> </div>