| <!DOCTYPE html> | |
| <script src="../../../resources/run-after-layout-and-paint.js"></script> | |
| <script> | |
| runAfterLayoutAndPaint(function() { | |
| content.style.height = '1000px'; | |
| }, true); | |
| </script> | |
| <div style="column-fill: auto; columns: 4; column-rule: 10px solid blue; width: 400px; height: 400px"> | |
| <div id="content" style="height: 500px; background: gray"></div> | |
| </div> |