| <!DOCTYPE html> | |
| <style> | |
| div { | |
| height: 100px; | |
| width: 100px; | |
| } | |
| .container { | |
| display: flex; | |
| } | |
| .paintcontain { | |
| contain: paint; | |
| } | |
| </style> | |
| <!-- PASS if the green box is visible --> | |
| <div class=container> | |
| <div class=paintcontain><div style="background-color: green;"></div></div> | |
| <div><div></div></div> | |
| </div> |