| OLD | NEW | 
|   1 <!DOCTYPE html> |   1 <!DOCTYPE html> | 
|   2 <p>There should be two yellow boxes below, on a blue background.</p> |   2 <p>There should be one yellow boxes below, on a blue background. There is only o
    ne because the content is composited, and hence not fragmented.</p> | 
|   3 <div style="-webkit-columns:2; -webkit-column-gap:1em; column-fill:auto; width:1
    7em; height:13em; line-height:2em;"> |   3 <div style="-webkit-columns:2; -webkit-column-gap:1em; column-fill:auto; width:1
    7em; height:13em; line-height:2em;"> | 
|   4     <div style="will-change:transform; position:absolute; left:0; right:0; heigh
    t:13em; background:blue;"></div> |   4     <div style="will-change:transform; position:absolute; left:0; right:0; heigh
    t:13em; background:blue;"></div> | 
|   5     <br> |   5     <br> | 
|   6     <br> |   6     <br> | 
|   7     <br> |   7     <br> | 
|   8     <br> |   8     <br> | 
|   9     <div style="position:relative; overflow:hidden; margin:0.5em; height:8.5em; 
    background:yellow;"> |   9     <div style="position:relative; overflow:hidden; margin:0.5em; height:8.5em; 
    background:yellow;"> | 
|  10         first<br> |  10         first<br> | 
|  11         column<br> |  11         column<br> | 
|  12         second<br> |  12         second<br> | 
|  13         column<br> |  13         column<br> | 
|  14         <div style="background:red;">FAIL</div> |  14         <div style="background:red;">FAIL</div> | 
|  15     </div> |  15     </div> | 
|  16 </div> |  16 </div> | 
| OLD | NEW |