| PASS e.style['animation-direction'] = "normal" should set the property value | |
| PASS e.style['animation-direction'] = "reverse" should set the property value | |
| PASS e.style['animation-direction'] = "alternate" should set the property value | |
| PASS e.style['animation-direction'] = "alternate-reverse" should set the property value | |
| PASS e.style['animation-direction'] = "normal, reverse, alternate, alternate-reverse" should set the property value | |