| <!DOCTYPE html> | |
| <script> | |
| onload = function() { | |
| document.body.offsetTop; | |
| document.getElementById('elm').style.height = '0'; | |
| } | |
| </script> | |
| <p>There should be a blue <em>square</em> below.</p> | |
| <div style="-webkit-columns:3; -webkit-column-gap:0; width:9em; line-height:9em; background:blue;"> | |
| <div style="-webkit-column-span:all; background:black;"> | |
| <div id="elm" style="height:15em;"></div> | |
| </div> | |
| <br> | |
| </div> |