| <!DOCTYPE html> |
| <style> |
| div { |
| aspect-ratio: 1; |
| mask-image: url(http://localhost:8000); |
| } |
| ol { |
| column-span: all; |
| } |
| ol:only-child { |
| column-count: 2; |
| } |
| :nth-child(2) { |
| content: url(); |
| } |
| </style> |
| <script> |
| onload = () => { |
| document.documentElement.append(document.createElement('div')); |
| document.designMode = 'on'; |
| document.execCommand('SelectAll'); |
| for (let i = 0; i < 10; i++) { |
| document.execCommand('InsertNestedOrderedList'); |
| } |
| if (window.testRunner) |
| testRunner.dumpAsText(); |
| console.log("This test passes if it does not crash."); |
| }; |
| </script> |
