| OLD | NEW | 
|---|
| 1 <!DOCTYPE html> | 1 <!DOCTYPE html> | 
|  | 2 <style> | 
|  | 3     .x::after { display:block; -webkit-column-span:all; column-span:all; backgro
    und:yellow; content:".........."; } | 
|  | 4 </style> | 
|  | 5 <p>Test adding an ::after pseudo element that's a spanner. The DOM node is follo
    wed by more content, | 
|  | 6     so we need to split the existing column row into two.</p> | 
| 2 <p>There should be three rectangles with identical sizes below. The first and th
    ird one | 7 <p>There should be three rectangles with identical sizes below. The first and th
    ird one | 
| 3     should be blue with nothing inside. The second one should be yellow with som
    e dots | 8     should be blue with nothing inside. The second one should be yellow with som
    e dots | 
| 4     inside.</p> | 9     inside.</p> | 
| 5 <div style="line-height:100px; background:blue;"> | 10 <div style="line-height:100px; background:blue;"> | 
| 6       | 11     <br> | 
| 7     <div style="background:yellow;">..........</div> | 12     <div style="background:yellow;">..........</div> | 
| 8       | 13     <br> | 
| 9 </div> | 14 </div> | 
| OLD | NEW | 
|---|