| PASS Property opacity value '1' | |
| PASS Property opacity value '0.5' | |
| PASS Property opacity value '0' | |
| PASS Property opacity value '-2' | |
| PASS Property opacity value '3' | |
| PASS Property opacity value '-100%' | |
| PASS Property opacity value '50%' | |
| PASS Property opacity value '300%' | |