| <!DOCTYPE html> | |
| <script src="../../resources/run-after-layout-and-paint.js"></script> | |
| <p>There should be two black vertical lines below.</p> | |
| <div id="multicol" style="columns:3; column-rule:2px solid; column-gap:2px; column-fill:auto; width:304px; height:100px;"> | |
| <div style="height:300px; background:white;"></div> | |
| </div> | |
| <script> | |
| runAfterLayoutAndPaint(function() { | |
| document.getElementById("multicol").style.width = "604px"; | |
| }, true); | |
| </script> |