<!DOCTYPE html> <title> Out-of-flow positioned element affects nested column balancing. </title> <link rel="help" href="https://www.w3.org/TR/css-position-3/#abspos-breaking"> <link rel="match" href="../reference/ref-filled-green-100px-square.xht"> <style> .multicol { column-count: 2; column-gap: 0px; } #outer { width: 100px; } #inner { width: 50px; column-fill: auto; } .abs { position: absolute; background-color: green; height: 400px; width: 25px; } #target { background-color: red; position: relative; height: 100px; width: 100px; top: -100px; z-index: -1; } </style> <p>Test passes if there is a filled green square and <strong>no red</strong>.</p> <div class="multicol" id="outer"> <div class="multicol" id="inner"> <div style="position: relative;"> <div class="abs"></div> </div> </div> </div> <div id="target"></div>