<!DOCTYPE html> <link rel="help" href="https://bugs.chromium.org/p/chromium/issues/detail?id=1311577"> <div id="container" style="columns:2; height:50px; column-fill:auto;"> <div style="columns:2; height:100px; column-fill:auto;"> <div style="height:20px;"></div> <div id="removeme" style="column-span:all; height:91px;"></div> <div style="position:relative;"> <div style="position:absolute;"></div> </div> <div style="column-span:all; height:100px;"></div> <div style="column-span:all; break-before:column;"></div> </div> <div id="showme" style="display:none; column-span:all;"></div> </div> <script> document.body.offsetTop; removeme.style.display = "none"; showme.style.display = "block"; </script>