| Source image | Reference image |
|---|---|
|
|
| Initiate Test | Purpose | Test Result | Comments |
| Done on load | get initial 'visibility' values: | NA | NA |
| set 'visibility' of 1 APS: | NA | Passed if middle part becomes non-visible. | |
| set 'visibility' of 2 APS: | NA | Passed if only middle part is visible. | |
| get 'visibility' values: | NA | NA | |
| remove 'visibility' attribute: | NA | NA |