LayoutTests/imported/w3c/web-platform-tests/css/css-position/parsing/z-index-valid-expected.txt

PASS e.style['z-index'] = "auto" should set the property value 
PASS e.style['z-index'] = "-789" should set the property value 
PASS e.style['z-index'] = "0" should set the property value 
PASS e.style['z-index'] = "123" should set the property value