Tests that properties with WebKit vendor-specific prefixes ("-apple-", "-webkit-", and "-khtml-") are treated the same as those without the prefix. Text [expanded] display: block; div - block user agent stylesheet opacity: 0.75; #inspected - 0.75 vendor-prefixes.html:11 /-- overloaded --/ #inspected - 1 vendor-prefixes.html:4 [expanded] element.style { () ======== Matched CSS Rules ======== [expanded] #inspected { (vendor-prefixes.html:11) -apple-opacity: 0.75; [expanded] #inspected { (vendor-prefixes.html:4) /-- overloaded --/ -apple-opacity: 0.35; /-- overloaded --/ -webkit-opacity: 0.5; /-- overloaded --/ opacity: 1; /-- overloaded --/ -khtml-opacity: 0.25; [expanded] div { (user agent stylesheet) display: block;