Click here to download the Blitz Browser!

WPT

wpt / css / css-backgrounds / animations / background-position-origin-interpolation.html

Spec: CSS Backgrounds ↗

Runs: Chrome 155.0.8043.0 (wpt@b89af32bc, 2026-09-05) | Firefox 157.0a1 (wpt@b89af32bc, 2026-09-05) | Safari 251 preview (wpt@b89af32bc, 2026-09-05) | Ladybird 1.0-2f9d9 (wpt@b89af32bc, 2026-09-06) | Servo Servo 0.6 (wpt@2c385f65e, 2026-09-04) | Blitz a50cb8971 (wpt@a95401e4e, 2026-09-03)

View on the Blitz WPT dashboard | Open test on wpt.live | wpt.fyi

ChromeFirefoxSafariLadybirdServoBlitz
Total280/280280/280280/280280/280210/280210/280
SubtestChromeFirefoxSafariLadybirdServoBlitz
CSS Transitions: property <background-position> from neutral to [left 20px top 20px] at (0) should be [10px 10px]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from neutral to [left 20px top 20px] at (0.25) should be [12.5px 12.5px]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from neutral to [left 20px top 20px] at (0.5) should be [15px 15px]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from neutral to [left 20px top 20px] at (0.75) should be [17.5px 17.5px]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from neutral to [left 20px top 20px] at (1) should be [20px 20px]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from neutral to [left 20px top 20px] at (0) should be [10px 10px]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from neutral to [left 20px top 20px] at (0.25) should be [12.5px 12.5px]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from neutral to [left 20px top 20px] at (0.5) should be [15px 15px]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from neutral to [left 20px top 20px] at (0.75) should be [17.5px 17.5px]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from neutral to [left 20px top 20px] at (1) should be [20px 20px]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from neutral to [left 20px top 20px] at (0) should be [10px 10px]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from neutral to [left 20px top 20px] at (0.25) should be [12.5px 12.5px]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from neutral to [left 20px top 20px] at (0.5) should be [15px 15px]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from neutral to [left 20px top 20px] at (0.75) should be [17.5px 17.5px]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from neutral to [left 20px top 20px] at (1) should be [20px 20px]PASSPASSPASSPASSPASSPASS
Web Animations: property <background-position> from neutral to [left 20px top 20px] at (0) should be [10px 10px]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from neutral to [left 20px top 20px] at (0.25) should be [12.5px 12.5px]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from neutral to [left 20px top 20px] at (0.5) should be [15px 15px]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from neutral to [left 20px top 20px] at (0.75) should be [17.5px 17.5px]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from neutral to [left 20px top 20px] at (1) should be [20px 20px]PASSPASSPASSPASSFAILFAIL
CSS Transitions: property <background-position> from [initial] to [left 20px top 20px] at (0) should be [0% 0%]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [initial] to [left 20px top 20px] at (0.25) should be [calc(0% + 5px) calc(0% + 5px)]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [initial] to [left 20px top 20px] at (0.5) should be [calc(0% + 10px) calc(0% + 10px)]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [initial] to [left 20px top 20px] at (0.75) should be [calc(0% + 15px) calc(0% + 15px)]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [initial] to [left 20px top 20px] at (1) should be [calc(0% + 20px) calc(0% + 20px)]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [initial] to [left 20px top 20px] at (0) should be [0% 0%]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [initial] to [left 20px top 20px] at (0.25) should be [calc(0% + 5px) calc(0% + 5px)]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [initial] to [left 20px top 20px] at (0.5) should be [calc(0% + 10px) calc(0% + 10px)]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [initial] to [left 20px top 20px] at (0.75) should be [calc(0% + 15px) calc(0% + 15px)]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [initial] to [left 20px top 20px] at (1) should be [calc(0% + 20px) calc(0% + 20px)]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [initial] to [left 20px top 20px] at (0) should be [0% 0%]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [initial] to [left 20px top 20px] at (0.25) should be [calc(0% + 5px) calc(0% + 5px)]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [initial] to [left 20px top 20px] at (0.5) should be [calc(0% + 10px) calc(0% + 10px)]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [initial] to [left 20px top 20px] at (0.75) should be [calc(0% + 15px) calc(0% + 15px)]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [initial] to [left 20px top 20px] at (1) should be [calc(0% + 20px) calc(0% + 20px)]PASSPASSPASSPASSPASSPASS
Web Animations: property <background-position> from [initial] to [left 20px top 20px] at (0) should be [0% 0%]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [initial] to [left 20px top 20px] at (0.25) should be [calc(0% + 5px) calc(0% + 5px)]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [initial] to [left 20px top 20px] at (0.5) should be [calc(0% + 10px) calc(0% + 10px)]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [initial] to [left 20px top 20px] at (0.75) should be [calc(0% + 15px) calc(0% + 15px)]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [initial] to [left 20px top 20px] at (1) should be [calc(0% + 20px) calc(0% + 20px)]PASSPASSPASSPASSFAILFAIL
CSS Transitions: property <background-position> from [inherit] to [left 20px top 20px] at (0) should be [80px 80px]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [inherit] to [left 20px top 20px] at (0.25) should be [65px 65px]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [inherit] to [left 20px top 20px] at (0.5) should be [50px 50px]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [inherit] to [left 20px top 20px] at (0.75) should be [35px 35px]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [inherit] to [left 20px top 20px] at (1) should be [20px 20px]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [inherit] to [left 20px top 20px] at (0) should be [80px 80px]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [inherit] to [left 20px top 20px] at (0.25) should be [65px 65px]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [inherit] to [left 20px top 20px] at (0.5) should be [50px 50px]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [inherit] to [left 20px top 20px] at (0.75) should be [35px 35px]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [inherit] to [left 20px top 20px] at (1) should be [20px 20px]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [inherit] to [left 20px top 20px] at (0) should be [80px 80px]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [inherit] to [left 20px top 20px] at (0.25) should be [65px 65px]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [inherit] to [left 20px top 20px] at (0.5) should be [50px 50px]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [inherit] to [left 20px top 20px] at (0.75) should be [35px 35px]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [inherit] to [left 20px top 20px] at (1) should be [20px 20px]PASSPASSPASSPASSPASSPASS
Web Animations: property <background-position> from [inherit] to [left 20px top 20px] at (0) should be [80px 80px]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [inherit] to [left 20px top 20px] at (0.25) should be [65px 65px]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [inherit] to [left 20px top 20px] at (0.5) should be [50px 50px]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [inherit] to [left 20px top 20px] at (0.75) should be [35px 35px]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [inherit] to [left 20px top 20px] at (1) should be [20px 20px]PASSPASSPASSPASSFAILFAIL
CSS Transitions: property <background-position> from [unset] to [left 20px top 20px] at (0) should be [0% 0%]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [unset] to [left 20px top 20px] at (0.25) should be [calc(0% + 5px) calc(0% + 5px)]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [unset] to [left 20px top 20px] at (0.5) should be [calc(0% + 10px) calc(0% + 10px)]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [unset] to [left 20px top 20px] at (0.75) should be [calc(0% + 15px) calc(0% + 15px)]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [unset] to [left 20px top 20px] at (1) should be [calc(0% + 20px) calc(0% + 20px)]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [unset] to [left 20px top 20px] at (0) should be [0% 0%]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [unset] to [left 20px top 20px] at (0.25) should be [calc(0% + 5px) calc(0% + 5px)]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [unset] to [left 20px top 20px] at (0.5) should be [calc(0% + 10px) calc(0% + 10px)]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [unset] to [left 20px top 20px] at (0.75) should be [calc(0% + 15px) calc(0% + 15px)]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [unset] to [left 20px top 20px] at (1) should be [calc(0% + 20px) calc(0% + 20px)]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [unset] to [left 20px top 20px] at (0) should be [0% 0%]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [unset] to [left 20px top 20px] at (0.25) should be [calc(0% + 5px) calc(0% + 5px)]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [unset] to [left 20px top 20px] at (0.5) should be [calc(0% + 10px) calc(0% + 10px)]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [unset] to [left 20px top 20px] at (0.75) should be [calc(0% + 15px) calc(0% + 15px)]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [unset] to [left 20px top 20px] at (1) should be [calc(0% + 20px) calc(0% + 20px)]PASSPASSPASSPASSPASSPASS
Web Animations: property <background-position> from [unset] to [left 20px top 20px] at (0) should be [0% 0%]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [unset] to [left 20px top 20px] at (0.25) should be [calc(0% + 5px) calc(0% + 5px)]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [unset] to [left 20px top 20px] at (0.5) should be [calc(0% + 10px) calc(0% + 10px)]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [unset] to [left 20px top 20px] at (0.75) should be [calc(0% + 15px) calc(0% + 15px)]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [unset] to [left 20px top 20px] at (1) should be [calc(0% + 20px) calc(0% + 20px)]PASSPASSPASSPASSFAILFAIL
CSS Transitions: property <background-position> from [center center] to [left 20px top 20px] at (0) should be [50% 50%]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [center center] to [left 20px top 20px] at (0.25) should be [calc(5px + 37.5%) calc(5px + 37.5%)]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [center center] to [left 20px top 20px] at (0.5) should be [calc(10px + 25%) calc(10px + 25%)]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [center center] to [left 20px top 20px] at (0.75) should be [calc(15px + 12.5%) calc(15px + 12.5%)]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [center center] to [left 20px top 20px] at (1) should be [calc(0% + 20px) calc(0% + 20px)]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [left 20px top 20px] at (0) should be [50% 50%]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [left 20px top 20px] at (0.25) should be [calc(5px + 37.5%) calc(5px + 37.5%)]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [left 20px top 20px] at (0.5) should be [calc(10px + 25%) calc(10px + 25%)]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [left 20px top 20px] at (0.75) should be [calc(15px + 12.5%) calc(15px + 12.5%)]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [left 20px top 20px] at (1) should be [calc(0% + 20px) calc(0% + 20px)]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [left 20px top 20px] at (0) should be [50% 50%]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [left 20px top 20px] at (0.25) should be [calc(5px + 37.5%) calc(5px + 37.5%)]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [left 20px top 20px] at (0.5) should be [calc(10px + 25%) calc(10px + 25%)]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [left 20px top 20px] at (0.75) should be [calc(15px + 12.5%) calc(15px + 12.5%)]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [left 20px top 20px] at (1) should be [calc(0% + 20px) calc(0% + 20px)]PASSPASSPASSPASSPASSPASS
Web Animations: property <background-position> from [center center] to [left 20px top 20px] at (0) should be [50% 50%]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [center center] to [left 20px top 20px] at (0.25) should be [calc(5px + 37.5%) calc(5px + 37.5%)]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [center center] to [left 20px top 20px] at (0.5) should be [calc(10px + 25%) calc(10px + 25%)]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [center center] to [left 20px top 20px] at (0.75) should be [calc(15px + 12.5%) calc(15px + 12.5%)]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [center center] to [left 20px top 20px] at (1) should be [calc(0% + 20px) calc(0% + 20px)]PASSPASSPASSPASSFAILFAIL
CSS Transitions: property <background-position> from [center center] to [center top 20px] at (0) should be [50% 50%]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [center center] to [center top 20px] at (0.25) should be [50% calc(5px + 37.5%)]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [center center] to [center top 20px] at (0.5) should be [50% calc(10px + 25%)]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [center center] to [center top 20px] at (0.75) should be [50% calc(15px + 12.5%)]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [center center] to [center top 20px] at (1) should be [50% calc(0% + 20px)]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [center top 20px] at (0) should be [50% 50%]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [center top 20px] at (0.25) should be [50% calc(5px + 37.5%)]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [center top 20px] at (0.5) should be [50% calc(10px + 25%)]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [center top 20px] at (0.75) should be [50% calc(15px + 12.5%)]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [center top 20px] at (1) should be [50% calc(0% + 20px)]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [center top 20px] at (0) should be [50% 50%]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [center top 20px] at (0.25) should be [50% calc(5px + 37.5%)]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [center top 20px] at (0.5) should be [50% calc(10px + 25%)]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [center top 20px] at (0.75) should be [50% calc(15px + 12.5%)]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [center top 20px] at (1) should be [50% calc(0% + 20px)]PASSPASSPASSPASSPASSPASS
Web Animations: property <background-position> from [center center] to [center top 20px] at (0) should be [50% 50%]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [center center] to [center top 20px] at (0.25) should be [50% calc(5px + 37.5%)]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [center center] to [center top 20px] at (0.5) should be [50% calc(10px + 25%)]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [center center] to [center top 20px] at (0.75) should be [50% calc(15px + 12.5%)]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [center center] to [center top 20px] at (1) should be [50% calc(0% + 20px)]PASSPASSPASSPASSFAILFAIL
CSS Transitions: property <background-position> from [center center] to [right 20px top 20px] at (0) should be [50% 50%]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [center center] to [right 20px top 20px] at (0.25) should be [calc(-5px + 62.5%) calc(5px + 37.5%)]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [center center] to [right 20px top 20px] at (0.5) should be [calc(-10px + 75%) calc(10px + 25%)]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [center center] to [right 20px top 20px] at (0.75) should be [calc(-15px + 87.5%) calc(15px + 12.5%)]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [center center] to [right 20px top 20px] at (1) should be [calc(-20px + 100%) calc(0% + 20px)]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [right 20px top 20px] at (0) should be [50% 50%]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [right 20px top 20px] at (0.25) should be [calc(-5px + 62.5%) calc(5px + 37.5%)]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [right 20px top 20px] at (0.5) should be [calc(-10px + 75%) calc(10px + 25%)]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [right 20px top 20px] at (0.75) should be [calc(-15px + 87.5%) calc(15px + 12.5%)]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [right 20px top 20px] at (1) should be [calc(-20px + 100%) calc(0% + 20px)]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [right 20px top 20px] at (0) should be [50% 50%]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [right 20px top 20px] at (0.25) should be [calc(-5px + 62.5%) calc(5px + 37.5%)]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [right 20px top 20px] at (0.5) should be [calc(-10px + 75%) calc(10px + 25%)]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [right 20px top 20px] at (0.75) should be [calc(-15px + 87.5%) calc(15px + 12.5%)]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [right 20px top 20px] at (1) should be [calc(-20px + 100%) calc(0% + 20px)]PASSPASSPASSPASSPASSPASS
Web Animations: property <background-position> from [center center] to [right 20px top 20px] at (0) should be [50% 50%]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [center center] to [right 20px top 20px] at (0.25) should be [calc(-5px + 62.5%) calc(5px + 37.5%)]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [center center] to [right 20px top 20px] at (0.5) should be [calc(-10px + 75%) calc(10px + 25%)]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [center center] to [right 20px top 20px] at (0.75) should be [calc(-15px + 87.5%) calc(15px + 12.5%)]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [center center] to [right 20px top 20px] at (1) should be [calc(-20px + 100%) calc(0% + 20px)]PASSPASSPASSPASSFAILFAIL
CSS Transitions: property <background-position> from [center center] to [left 20px center] at (0) should be [50% 50%]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [center center] to [left 20px center] at (0.25) should be [calc(5px + 37.5%) 50%]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [center center] to [left 20px center] at (0.5) should be [calc(10px + 25%) 50%]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [center center] to [left 20px center] at (0.75) should be [calc(15px + 12.5%) 50%]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [center center] to [left 20px center] at (1) should be [calc(0% + 20px) 50%]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [left 20px center] at (0) should be [50% 50%]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [left 20px center] at (0.25) should be [calc(5px + 37.5%) 50%]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [left 20px center] at (0.5) should be [calc(10px + 25%) 50%]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [left 20px center] at (0.75) should be [calc(15px + 12.5%) 50%]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [left 20px center] at (1) should be [calc(0% + 20px) 50%]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [left 20px center] at (0) should be [50% 50%]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [left 20px center] at (0.25) should be [calc(5px + 37.5%) 50%]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [left 20px center] at (0.5) should be [calc(10px + 25%) 50%]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [left 20px center] at (0.75) should be [calc(15px + 12.5%) 50%]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [left 20px center] at (1) should be [calc(0% + 20px) 50%]PASSPASSPASSPASSPASSPASS
Web Animations: property <background-position> from [center center] to [left 20px center] at (0) should be [50% 50%]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [center center] to [left 20px center] at (0.25) should be [calc(5px + 37.5%) 50%]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [center center] to [left 20px center] at (0.5) should be [calc(10px + 25%) 50%]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [center center] to [left 20px center] at (0.75) should be [calc(15px + 12.5%) 50%]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [center center] to [left 20px center] at (1) should be [calc(0% + 20px) 50%]PASSPASSPASSPASSFAILFAIL
CSS Transitions: property <background-position> from [center center] to [center center] at (0) should be [50% 50%]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [center center] to [center center] at (0.25) should be [50% 50%]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [center center] to [center center] at (0.5) should be [50% 50%]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [center center] to [center center] at (0.75) should be [50% 50%]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [center center] to [center center] at (1) should be [50% 50%]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [center center] at (0) should be [50% 50%]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [center center] at (0.25) should be [50% 50%]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [center center] at (0.5) should be [50% 50%]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [center center] at (0.75) should be [50% 50%]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [center center] at (1) should be [50% 50%]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [center center] at (0) should be [50% 50%]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [center center] at (0.25) should be [50% 50%]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [center center] at (0.5) should be [50% 50%]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [center center] at (0.75) should be [50% 50%]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [center center] at (1) should be [50% 50%]PASSPASSPASSPASSPASSPASS
Web Animations: property <background-position> from [center center] to [center center] at (0) should be [50% 50%]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [center center] to [center center] at (0.25) should be [50% 50%]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [center center] to [center center] at (0.5) should be [50% 50%]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [center center] to [center center] at (0.75) should be [50% 50%]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [center center] to [center center] at (1) should be [50% 50%]PASSPASSPASSPASSFAILFAIL
CSS Transitions: property <background-position> from [center center] to [right 20px center] at (0) should be [50% 50%]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [center center] to [right 20px center] at (0.25) should be [calc(-5px + 62.5%) 50%]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [center center] to [right 20px center] at (0.5) should be [calc(-10px + 75%) 50%]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [center center] to [right 20px center] at (0.75) should be [calc(-15px + 87.5%) 50%]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [center center] to [right 20px center] at (1) should be [calc(-20px + 100%) 50%]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [right 20px center] at (0) should be [50% 50%]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [right 20px center] at (0.25) should be [calc(-5px + 62.5%) 50%]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [right 20px center] at (0.5) should be [calc(-10px + 75%) 50%]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [right 20px center] at (0.75) should be [calc(-15px + 87.5%) 50%]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [right 20px center] at (1) should be [calc(-20px + 100%) 50%]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [right 20px center] at (0) should be [50% 50%]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [right 20px center] at (0.25) should be [calc(-5px + 62.5%) 50%]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [right 20px center] at (0.5) should be [calc(-10px + 75%) 50%]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [right 20px center] at (0.75) should be [calc(-15px + 87.5%) 50%]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [right 20px center] at (1) should be [calc(-20px + 100%) 50%]PASSPASSPASSPASSPASSPASS
Web Animations: property <background-position> from [center center] to [right 20px center] at (0) should be [50% 50%]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [center center] to [right 20px center] at (0.25) should be [calc(-5px + 62.5%) 50%]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [center center] to [right 20px center] at (0.5) should be [calc(-10px + 75%) 50%]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [center center] to [right 20px center] at (0.75) should be [calc(-15px + 87.5%) 50%]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [center center] to [right 20px center] at (1) should be [calc(-20px + 100%) 50%]PASSPASSPASSPASSFAILFAIL
CSS Transitions: property <background-position> from [center center] to [left 20px bottom 20px] at (0) should be [50% 50%]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [center center] to [left 20px bottom 20px] at (0.25) should be [calc(5px + 37.5%) calc(-5px + 62.5%)]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [center center] to [left 20px bottom 20px] at (0.5) should be [calc(10px + 25%) calc(-10px + 75%)]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [center center] to [left 20px bottom 20px] at (0.75) should be [calc(15px + 12.5%) calc(-15px + 87.5%)]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [center center] to [left 20px bottom 20px] at (1) should be [calc(0% + 20px) calc(-20px + 100%)]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [left 20px bottom 20px] at (0) should be [50% 50%]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [left 20px bottom 20px] at (0.25) should be [calc(5px + 37.5%) calc(-5px + 62.5%)]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [left 20px bottom 20px] at (0.5) should be [calc(10px + 25%) calc(-10px + 75%)]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [left 20px bottom 20px] at (0.75) should be [calc(15px + 12.5%) calc(-15px + 87.5%)]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [left 20px bottom 20px] at (1) should be [calc(0% + 20px) calc(-20px + 100%)]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [left 20px bottom 20px] at (0) should be [50% 50%]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [left 20px bottom 20px] at (0.25) should be [calc(5px + 37.5%) calc(-5px + 62.5%)]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [left 20px bottom 20px] at (0.5) should be [calc(10px + 25%) calc(-10px + 75%)]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [left 20px bottom 20px] at (0.75) should be [calc(15px + 12.5%) calc(-15px + 87.5%)]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [left 20px bottom 20px] at (1) should be [calc(0% + 20px) calc(-20px + 100%)]PASSPASSPASSPASSPASSPASS
Web Animations: property <background-position> from [center center] to [left 20px bottom 20px] at (0) should be [50% 50%]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [center center] to [left 20px bottom 20px] at (0.25) should be [calc(5px + 37.5%) calc(-5px + 62.5%)]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [center center] to [left 20px bottom 20px] at (0.5) should be [calc(10px + 25%) calc(-10px + 75%)]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [center center] to [left 20px bottom 20px] at (0.75) should be [calc(15px + 12.5%) calc(-15px + 87.5%)]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [center center] to [left 20px bottom 20px] at (1) should be [calc(0% + 20px) calc(-20px + 100%)]PASSPASSPASSPASSFAILFAIL
CSS Transitions: property <background-position> from [center center] to [center bottom 20px] at (0) should be [50% 50%]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [center center] to [center bottom 20px] at (0.25) should be [50% calc(-5px + 62.5%)]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [center center] to [center bottom 20px] at (0.5) should be [50% calc(-10px + 75%)]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [center center] to [center bottom 20px] at (0.75) should be [50% calc(-15px + 87.5%)]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [center center] to [center bottom 20px] at (1) should be [50% calc(-20px + 100%)]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [center bottom 20px] at (0) should be [50% 50%]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [center bottom 20px] at (0.25) should be [50% calc(-5px + 62.5%)]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [center bottom 20px] at (0.5) should be [50% calc(-10px + 75%)]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [center bottom 20px] at (0.75) should be [50% calc(-15px + 87.5%)]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [center bottom 20px] at (1) should be [50% calc(-20px + 100%)]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [center bottom 20px] at (0) should be [50% 50%]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [center bottom 20px] at (0.25) should be [50% calc(-5px + 62.5%)]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [center bottom 20px] at (0.5) should be [50% calc(-10px + 75%)]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [center bottom 20px] at (0.75) should be [50% calc(-15px + 87.5%)]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [center bottom 20px] at (1) should be [50% calc(-20px + 100%)]PASSPASSPASSPASSPASSPASS
Web Animations: property <background-position> from [center center] to [center bottom 20px] at (0) should be [50% 50%]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [center center] to [center bottom 20px] at (0.25) should be [50% calc(-5px + 62.5%)]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [center center] to [center bottom 20px] at (0.5) should be [50% calc(-10px + 75%)]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [center center] to [center bottom 20px] at (0.75) should be [50% calc(-15px + 87.5%)]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [center center] to [center bottom 20px] at (1) should be [50% calc(-20px + 100%)]PASSPASSPASSPASSFAILFAIL
CSS Transitions: property <background-position> from [center center] to [right 20px bottom 20px] at (0) should be [50% 50%]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [center center] to [right 20px bottom 20px] at (0.25) should be [calc(-5px + 62.5%) calc(-5px + 62.5%)]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [center center] to [right 20px bottom 20px] at (0.5) should be [calc(-10px + 75%) calc(-10px + 75%)]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [center center] to [right 20px bottom 20px] at (0.75) should be [calc(-15px + 87.5%) calc(-15px + 87.5%)]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [center center] to [right 20px bottom 20px] at (1) should be [calc(-20px + 100%) calc(-20px + 100%)]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [right 20px bottom 20px] at (0) should be [50% 50%]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [right 20px bottom 20px] at (0.25) should be [calc(-5px + 62.5%) calc(-5px + 62.5%)]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [right 20px bottom 20px] at (0.5) should be [calc(-10px + 75%) calc(-10px + 75%)]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [right 20px bottom 20px] at (0.75) should be [calc(-15px + 87.5%) calc(-15px + 87.5%)]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center center] to [right 20px bottom 20px] at (1) should be [calc(-20px + 100%) calc(-20px + 100%)]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [right 20px bottom 20px] at (0) should be [50% 50%]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [right 20px bottom 20px] at (0.25) should be [calc(-5px + 62.5%) calc(-5px + 62.5%)]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [right 20px bottom 20px] at (0.5) should be [calc(-10px + 75%) calc(-10px + 75%)]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [right 20px bottom 20px] at (0.75) should be [calc(-15px + 87.5%) calc(-15px + 87.5%)]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center center] to [right 20px bottom 20px] at (1) should be [calc(-20px + 100%) calc(-20px + 100%)]PASSPASSPASSPASSPASSPASS
Web Animations: property <background-position> from [center center] to [right 20px bottom 20px] at (0) should be [50% 50%]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [center center] to [right 20px bottom 20px] at (0.25) should be [calc(-5px + 62.5%) calc(-5px + 62.5%)]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [center center] to [right 20px bottom 20px] at (0.5) should be [calc(-10px + 75%) calc(-10px + 75%)]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [center center] to [right 20px bottom 20px] at (0.75) should be [calc(-15px + 87.5%) calc(-15px + 87.5%)]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [center center] to [right 20px bottom 20px] at (1) should be [calc(-20px + 100%) calc(-20px + 100%)]PASSPASSPASSPASSFAILFAIL
CSS Transitions: property <background-position> from [center] to [bottom] at (0) should be [50% 50%]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [center] to [bottom] at (0.25) should be [50% 62.5%]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [center] to [bottom] at (0.5) should be [50% 75%]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [center] to [bottom] at (0.75) should be [50% 87.5%]PASSPASSPASSPASSPASSPASS
CSS Transitions: property <background-position> from [center] to [bottom] at (1) should be [50% 100%]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center] to [bottom] at (0) should be [50% 50%]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center] to [bottom] at (0.25) should be [50% 62.5%]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center] to [bottom] at (0.5) should be [50% 75%]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center] to [bottom] at (0.75) should be [50% 87.5%]PASSPASSPASSPASSPASSPASS
CSS Transitions with transition: all: property <background-position> from [center] to [bottom] at (1) should be [50% 100%]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center] to [bottom] at (0) should be [50% 50%]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center] to [bottom] at (0.25) should be [50% 62.5%]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center] to [bottom] at (0.5) should be [50% 75%]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center] to [bottom] at (0.75) should be [50% 87.5%]PASSPASSPASSPASSPASSPASS
CSS Animations: property <background-position> from [center] to [bottom] at (1) should be [50% 100%]PASSPASSPASSPASSPASSPASS
Web Animations: property <background-position> from [center] to [bottom] at (0) should be [50% 50%]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [center] to [bottom] at (0.25) should be [50% 62.5%]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [center] to [bottom] at (0.5) should be [50% 75%]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [center] to [bottom] at (0.75) should be [50% 87.5%]PASSPASSPASSPASSFAILFAIL
Web Animations: property <background-position> from [center] to [bottom] at (1) should be [50% 100%]PASSPASSPASSPASSFAILFAIL