
PASS CSS Transitions: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (-0.25) should be [30px 30px, 30px 30px, 30px 30px, 30px 30px]
PASS CSS Transitions: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0) should be [40px 40px, 40px 40px, 40px 40px, 40px 40px]
PASS CSS Transitions: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.25) should be [50px 50px, 50px 50px, 50px 50px, 50px 50px]
PASS CSS Transitions: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.5) should be [60px 60px, 60px 60px, 60px 60px, 60px 60px]
PASS CSS Transitions: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.75) should be [70px 70px, 70px 70px, 70px 70px, 70px 70px]
PASS CSS Transitions: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (1) should be [80px 80px, 80px 80px, 80px 80px, 80px 80px]
PASS CSS Transitions: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (1.25) should be [90px 90px, 90px 90px, 90px 90px, 90px 90px]
PASS CSS Transitions with transition: all: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (-0.25) should be [30px 30px, 30px 30px, 30px 30px, 30px 30px]
PASS CSS Transitions with transition: all: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0) should be [40px 40px, 40px 40px, 40px 40px, 40px 40px]
PASS CSS Transitions with transition: all: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.25) should be [50px 50px, 50px 50px, 50px 50px, 50px 50px]
PASS CSS Transitions with transition: all: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.5) should be [60px 60px, 60px 60px, 60px 60px, 60px 60px]
PASS CSS Transitions with transition: all: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.75) should be [70px 70px, 70px 70px, 70px 70px, 70px 70px]
PASS CSS Transitions with transition: all: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (1) should be [80px 80px, 80px 80px, 80px 80px, 80px 80px]
PASS CSS Transitions with transition: all: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (1.25) should be [90px 90px, 90px 90px, 90px 90px, 90px 90px]
PASS CSS Animations: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (-0.25) should be [30px 30px, 30px 30px, 30px 30px, 30px 30px]
PASS CSS Animations: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0) should be [40px 40px, 40px 40px, 40px 40px, 40px 40px]
PASS CSS Animations: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.25) should be [50px 50px, 50px 50px, 50px 50px, 50px 50px]
PASS CSS Animations: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.5) should be [60px 60px, 60px 60px, 60px 60px, 60px 60px]
PASS CSS Animations: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.75) should be [70px 70px, 70px 70px, 70px 70px, 70px 70px]
PASS CSS Animations: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (1) should be [80px 80px, 80px 80px, 80px 80px, 80px 80px]
PASS CSS Animations: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (1.25) should be [90px 90px, 90px 90px, 90px 90px, 90px 90px]
PASS Web Animations: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (-0.25) should be [30px 30px, 30px 30px, 30px 30px, 30px 30px]
PASS Web Animations: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0) should be [40px 40px, 40px 40px, 40px 40px, 40px 40px]
PASS Web Animations: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.25) should be [50px 50px, 50px 50px, 50px 50px, 50px 50px]
PASS Web Animations: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.5) should be [60px 60px, 60px 60px, 60px 60px, 60px 60px]
PASS Web Animations: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.75) should be [70px 70px, 70px 70px, 70px 70px, 70px 70px]
PASS Web Animations: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (1) should be [80px 80px, 80px 80px, 80px 80px, 80px 80px]
PASS Web Animations: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (1.25) should be [90px 90px, 90px 90px, 90px 90px, 90px 90px]
PASS CSS Transitions: property <background-position> from [initial] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (-0.25) should be [calc(0% - 20px)  calc(0% - 20px),  calc(0% - 20px)  calc(0% - 20px),  calc(0% - 20px)  calc(0% - 20px),  calc(0% - 20px)  calc(0% - 20px)]
PASS CSS Transitions: property <background-position> from [initial] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0) should be [0% 0%, 0% 0%, 0% 0%, 0% 0%]
PASS CSS Transitions: property <background-position> from [initial] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.25) should be [calc(0% + 20px)  calc(0% + 20px),  calc(0% + 20px)  calc(0% + 20px),  calc(0% + 20px)  calc(0% + 20px),  calc(0% + 20px)  calc(0% + 20px)]
PASS CSS Transitions: property <background-position> from [initial] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.5) should be [calc(0% + 40px)  calc(0% + 40px),  calc(0% + 40px)  calc(0% + 40px),  calc(0% + 40px)  calc(0% + 40px),  calc(0% + 40px)  calc(0% + 40px)]
PASS CSS Transitions: property <background-position> from [initial] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.75) should be [calc(0% + 60px)  calc(0% + 60px),  calc(0% + 60px)  calc(0% + 60px),  calc(0% + 60px)  calc(0% + 60px),  calc(0% + 60px)  calc(0% + 60px)]
PASS CSS Transitions: property <background-position> from [initial] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (1) should be [calc(0% + 80px)  calc(0% + 80px),  calc(0% + 80px)  calc(0% + 80px),  calc(0% + 80px)  calc(0% + 80px),  calc(0% + 80px)  calc(0% + 80px)]
PASS CSS Transitions: property <background-position> from [initial] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (1.25) should be [calc(0% + 100px) calc(0% + 100px), calc(0% + 100px) calc(0% + 100px), calc(0% + 100px) calc(0% + 100px), calc(0% + 100px) calc(0% + 100px)]
PASS CSS Transitions with transition: all: property <background-position> from [initial] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (-0.25) should be [calc(0% - 20px)  calc(0% - 20px),  calc(0% - 20px)  calc(0% - 20px),  calc(0% - 20px)  calc(0% - 20px),  calc(0% - 20px)  calc(0% - 20px)]
PASS CSS Transitions with transition: all: property <background-position> from [initial] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0) should be [0% 0%, 0% 0%, 0% 0%, 0% 0%]
PASS CSS Transitions with transition: all: property <background-position> from [initial] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.25) should be [calc(0% + 20px)  calc(0% + 20px),  calc(0% + 20px)  calc(0% + 20px),  calc(0% + 20px)  calc(0% + 20px),  calc(0% + 20px)  calc(0% + 20px)]
PASS CSS Transitions with transition: all: property <background-position> from [initial] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.5) should be [calc(0% + 40px)  calc(0% + 40px),  calc(0% + 40px)  calc(0% + 40px),  calc(0% + 40px)  calc(0% + 40px),  calc(0% + 40px)  calc(0% + 40px)]
PASS CSS Transitions with transition: all: property <background-position> from [initial] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.75) should be [calc(0% + 60px)  calc(0% + 60px),  calc(0% + 60px)  calc(0% + 60px),  calc(0% + 60px)  calc(0% + 60px),  calc(0% + 60px)  calc(0% + 60px)]
PASS CSS Transitions with transition: all: property <background-position> from [initial] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (1) should be [calc(0% + 80px)  calc(0% + 80px),  calc(0% + 80px)  calc(0% + 80px),  calc(0% + 80px)  calc(0% + 80px),  calc(0% + 80px)  calc(0% + 80px)]
PASS CSS Transitions with transition: all: property <background-position> from [initial] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (1.25) should be [calc(0% + 100px) calc(0% + 100px), calc(0% + 100px) calc(0% + 100px), calc(0% + 100px) calc(0% + 100px), calc(0% + 100px) calc(0% + 100px)]
PASS CSS Animations: property <background-position> from [initial] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (-0.25) should be [calc(0% - 20px)  calc(0% - 20px),  calc(0% - 20px)  calc(0% - 20px),  calc(0% - 20px)  calc(0% - 20px),  calc(0% - 20px)  calc(0% - 20px)]
PASS CSS Animations: property <background-position> from [initial] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0) should be [0% 0%, 0% 0%, 0% 0%, 0% 0%]
PASS CSS Animations: property <background-position> from [initial] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.25) should be [calc(0% + 20px)  calc(0% + 20px),  calc(0% + 20px)  calc(0% + 20px),  calc(0% + 20px)  calc(0% + 20px),  calc(0% + 20px)  calc(0% + 20px)]
PASS CSS Animations: property <background-position> from [initial] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.5) should be [calc(0% + 40px)  calc(0% + 40px),  calc(0% + 40px)  calc(0% + 40px),  calc(0% + 40px)  calc(0% + 40px),  calc(0% + 40px)  calc(0% + 40px)]
PASS CSS Animations: property <background-position> from [initial] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.75) should be [calc(0% + 60px)  calc(0% + 60px),  calc(0% + 60px)  calc(0% + 60px),  calc(0% + 60px)  calc(0% + 60px),  calc(0% + 60px)  calc(0% + 60px)]
PASS CSS Animations: property <background-position> from [initial] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (1) should be [calc(0% + 80px)  calc(0% + 80px),  calc(0% + 80px)  calc(0% + 80px),  calc(0% + 80px)  calc(0% + 80px),  calc(0% + 80px)  calc(0% + 80px)]
PASS CSS Animations: property <background-position> from [initial] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (1.25) should be [calc(0% + 100px) calc(0% + 100px), calc(0% + 100px) calc(0% + 100px), calc(0% + 100px) calc(0% + 100px), calc(0% + 100px) calc(0% + 100px)]
PASS Web Animations: property <background-position> from [initial] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (-0.25) should be [calc(0% - 20px)  calc(0% - 20px),  calc(0% - 20px)  calc(0% - 20px),  calc(0% - 20px)  calc(0% - 20px),  calc(0% - 20px)  calc(0% - 20px)]
PASS Web Animations: property <background-position> from [initial] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0) should be [0% 0%, 0% 0%, 0% 0%, 0% 0%]
PASS Web Animations: property <background-position> from [initial] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.25) should be [calc(0% + 20px)  calc(0% + 20px),  calc(0% + 20px)  calc(0% + 20px),  calc(0% + 20px)  calc(0% + 20px),  calc(0% + 20px)  calc(0% + 20px)]
PASS Web Animations: property <background-position> from [initial] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.5) should be [calc(0% + 40px)  calc(0% + 40px),  calc(0% + 40px)  calc(0% + 40px),  calc(0% + 40px)  calc(0% + 40px),  calc(0% + 40px)  calc(0% + 40px)]
PASS Web Animations: property <background-position> from [initial] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.75) should be [calc(0% + 60px)  calc(0% + 60px),  calc(0% + 60px)  calc(0% + 60px),  calc(0% + 60px)  calc(0% + 60px),  calc(0% + 60px)  calc(0% + 60px)]
PASS Web Animations: property <background-position> from [initial] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (1) should be [calc(0% + 80px)  calc(0% + 80px),  calc(0% + 80px)  calc(0% + 80px),  calc(0% + 80px)  calc(0% + 80px),  calc(0% + 80px)  calc(0% + 80px)]
PASS Web Animations: property <background-position> from [initial] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (1.25) should be [calc(0% + 100px) calc(0% + 100px), calc(0% + 100px) calc(0% + 100px), calc(0% + 100px) calc(0% + 100px), calc(0% + 100px) calc(0% + 100px)]
PASS CSS Transitions: property <background-position> from [inherit] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (-0.25) should be [55px 55px, 55px 55px, 55px 55px, 55px 55px]
PASS CSS Transitions: property <background-position> from [inherit] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0) should be [60px 60px, 60px 60px, 60px 60px, 60px 60px]
PASS CSS Transitions: property <background-position> from [inherit] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.25) should be [65px 65px, 65px 65px, 65px 65px, 65px 65px]
PASS CSS Transitions: property <background-position> from [inherit] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.5) should be [70px 70px, 70px 70px, 70px 70px, 70px 70px]
PASS CSS Transitions: property <background-position> from [inherit] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.75) should be [75px 75px, 75px 75px, 75px 75px, 75px 75px]
PASS CSS Transitions: property <background-position> from [inherit] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (1) should be [80px 80px, 80px 80px, 80px 80px, 80px 80px]
PASS CSS Transitions: property <background-position> from [inherit] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (1.25) should be [85px 85px, 85px 85px, 85px 85px, 85px 85px]
PASS CSS Transitions with transition: all: property <background-position> from [inherit] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (-0.25) should be [55px 55px, 55px 55px, 55px 55px, 55px 55px]
PASS CSS Transitions with transition: all: property <background-position> from [inherit] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0) should be [60px 60px, 60px 60px, 60px 60px, 60px 60px]
PASS CSS Transitions with transition: all: property <background-position> from [inherit] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.25) should be [65px 65px, 65px 65px, 65px 65px, 65px 65px]
PASS CSS Transitions with transition: all: property <background-position> from [inherit] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.5) should be [70px 70px, 70px 70px, 70px 70px, 70px 70px]
PASS CSS Transitions with transition: all: property <background-position> from [inherit] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.75) should be [75px 75px, 75px 75px, 75px 75px, 75px 75px]
PASS CSS Transitions with transition: all: property <background-position> from [inherit] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (1) should be [80px 80px, 80px 80px, 80px 80px, 80px 80px]
PASS CSS Transitions with transition: all: property <background-position> from [inherit] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (1.25) should be [85px 85px, 85px 85px, 85px 85px, 85px 85px]
PASS CSS Animations: property <background-position> from [inherit] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (-0.25) should be [55px 55px, 55px 55px, 55px 55px, 55px 55px]
PASS CSS Animations: property <background-position> from [inherit] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0) should be [60px 60px, 60px 60px, 60px 60px, 60px 60px]
PASS CSS Animations: property <background-position> from [inherit] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.25) should be [65px 65px, 65px 65px, 65px 65px, 65px 65px]
PASS CSS Animations: property <background-position> from [inherit] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.5) should be [70px 70px, 70px 70px, 70px 70px, 70px 70px]
PASS CSS Animations: property <background-position> from [inherit] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.75) should be [75px 75px, 75px 75px, 75px 75px, 75px 75px]
PASS CSS Animations: property <background-position> from [inherit] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (1) should be [80px 80px, 80px 80px, 80px 80px, 80px 80px]
PASS CSS Animations: property <background-position> from [inherit] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (1.25) should be [85px 85px, 85px 85px, 85px 85px, 85px 85px]
PASS Web Animations: property <background-position> from [inherit] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (-0.25) should be [55px 55px, 55px 55px, 55px 55px, 55px 55px]
PASS Web Animations: property <background-position> from [inherit] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0) should be [60px 60px, 60px 60px, 60px 60px, 60px 60px]
PASS Web Animations: property <background-position> from [inherit] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.25) should be [65px 65px, 65px 65px, 65px 65px, 65px 65px]
PASS Web Animations: property <background-position> from [inherit] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.5) should be [70px 70px, 70px 70px, 70px 70px, 70px 70px]
PASS Web Animations: property <background-position> from [inherit] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.75) should be [75px 75px, 75px 75px, 75px 75px, 75px 75px]
PASS Web Animations: property <background-position> from [inherit] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (1) should be [80px 80px, 80px 80px, 80px 80px, 80px 80px]
PASS Web Animations: property <background-position> from [inherit] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (1.25) should be [85px 85px, 85px 85px, 85px 85px, 85px 85px]
PASS CSS Transitions: property <background-position> from [unset] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (-0.25) should be [calc(0% - 20px)  calc(0% - 20px),  calc(0% - 20px)  calc(0% - 20px),  calc(0% - 20px)  calc(0% - 20px),  calc(0% - 20px)  calc(0% - 20px)]
PASS CSS Transitions: property <background-position> from [unset] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0) should be [0% 0%, 0% 0%, 0% 0%, 0% 0%]
PASS CSS Transitions: property <background-position> from [unset] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.25) should be [calc(0% + 20px)  calc(0% + 20px),  calc(0% + 20px)  calc(0% + 20px),  calc(0% + 20px)  calc(0% + 20px),  calc(0% + 20px)  calc(0% + 20px)]
PASS CSS Transitions: property <background-position> from [unset] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.5) should be [calc(0% + 40px)  calc(0% + 40px),  calc(0% + 40px)  calc(0% + 40px),  calc(0% + 40px)  calc(0% + 40px),  calc(0% + 40px)  calc(0% + 40px)]
PASS CSS Transitions: property <background-position> from [unset] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.75) should be [calc(0% + 60px)  calc(0% + 60px),  calc(0% + 60px)  calc(0% + 60px),  calc(0% + 60px)  calc(0% + 60px),  calc(0% + 60px)  calc(0% + 60px)]
PASS CSS Transitions: property <background-position> from [unset] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (1) should be [calc(0% + 80px)  calc(0% + 80px),  calc(0% + 80px)  calc(0% + 80px),  calc(0% + 80px)  calc(0% + 80px),  calc(0% + 80px)  calc(0% + 80px)]
PASS CSS Transitions: property <background-position> from [unset] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (1.25) should be [calc(0% + 100px) calc(0% + 100px), calc(0% + 100px) calc(0% + 100px), calc(0% + 100px) calc(0% + 100px), calc(0% + 100px) calc(0% + 100px)]
PASS CSS Transitions with transition: all: property <background-position> from [unset] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (-0.25) should be [calc(0% - 20px)  calc(0% - 20px),  calc(0% - 20px)  calc(0% - 20px),  calc(0% - 20px)  calc(0% - 20px),  calc(0% - 20px)  calc(0% - 20px)]
PASS CSS Transitions with transition: all: property <background-position> from [unset] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0) should be [0% 0%, 0% 0%, 0% 0%, 0% 0%]
PASS CSS Transitions with transition: all: property <background-position> from [unset] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.25) should be [calc(0% + 20px)  calc(0% + 20px),  calc(0% + 20px)  calc(0% + 20px),  calc(0% + 20px)  calc(0% + 20px),  calc(0% + 20px)  calc(0% + 20px)]
PASS CSS Transitions with transition: all: property <background-position> from [unset] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.5) should be [calc(0% + 40px)  calc(0% + 40px),  calc(0% + 40px)  calc(0% + 40px),  calc(0% + 40px)  calc(0% + 40px),  calc(0% + 40px)  calc(0% + 40px)]
PASS CSS Transitions with transition: all: property <background-position> from [unset] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.75) should be [calc(0% + 60px)  calc(0% + 60px),  calc(0% + 60px)  calc(0% + 60px),  calc(0% + 60px)  calc(0% + 60px),  calc(0% + 60px)  calc(0% + 60px)]
PASS CSS Transitions with transition: all: property <background-position> from [unset] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (1) should be [calc(0% + 80px)  calc(0% + 80px),  calc(0% + 80px)  calc(0% + 80px),  calc(0% + 80px)  calc(0% + 80px),  calc(0% + 80px)  calc(0% + 80px)]
PASS CSS Transitions with transition: all: property <background-position> from [unset] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (1.25) should be [calc(0% + 100px) calc(0% + 100px), calc(0% + 100px) calc(0% + 100px), calc(0% + 100px) calc(0% + 100px), calc(0% + 100px) calc(0% + 100px)]
PASS CSS Animations: property <background-position> from [unset] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (-0.25) should be [calc(0% - 20px)  calc(0% - 20px),  calc(0% - 20px)  calc(0% - 20px),  calc(0% - 20px)  calc(0% - 20px),  calc(0% - 20px)  calc(0% - 20px)]
PASS CSS Animations: property <background-position> from [unset] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0) should be [0% 0%, 0% 0%, 0% 0%, 0% 0%]
PASS CSS Animations: property <background-position> from [unset] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.25) should be [calc(0% + 20px)  calc(0% + 20px),  calc(0% + 20px)  calc(0% + 20px),  calc(0% + 20px)  calc(0% + 20px),  calc(0% + 20px)  calc(0% + 20px)]
PASS CSS Animations: property <background-position> from [unset] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.5) should be [calc(0% + 40px)  calc(0% + 40px),  calc(0% + 40px)  calc(0% + 40px),  calc(0% + 40px)  calc(0% + 40px),  calc(0% + 40px)  calc(0% + 40px)]
PASS CSS Animations: property <background-position> from [unset] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.75) should be [calc(0% + 60px)  calc(0% + 60px),  calc(0% + 60px)  calc(0% + 60px),  calc(0% + 60px)  calc(0% + 60px),  calc(0% + 60px)  calc(0% + 60px)]
PASS CSS Animations: property <background-position> from [unset] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (1) should be [calc(0% + 80px)  calc(0% + 80px),  calc(0% + 80px)  calc(0% + 80px),  calc(0% + 80px)  calc(0% + 80px),  calc(0% + 80px)  calc(0% + 80px)]
PASS CSS Animations: property <background-position> from [unset] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (1.25) should be [calc(0% + 100px) calc(0% + 100px), calc(0% + 100px) calc(0% + 100px), calc(0% + 100px) calc(0% + 100px), calc(0% + 100px) calc(0% + 100px)]
PASS Web Animations: property <background-position> from [unset] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (-0.25) should be [calc(0% - 20px)  calc(0% - 20px),  calc(0% - 20px)  calc(0% - 20px),  calc(0% - 20px)  calc(0% - 20px),  calc(0% - 20px)  calc(0% - 20px)]
PASS Web Animations: property <background-position> from [unset] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0) should be [0% 0%, 0% 0%, 0% 0%, 0% 0%]
PASS Web Animations: property <background-position> from [unset] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.25) should be [calc(0% + 20px)  calc(0% + 20px),  calc(0% + 20px)  calc(0% + 20px),  calc(0% + 20px)  calc(0% + 20px),  calc(0% + 20px)  calc(0% + 20px)]
PASS Web Animations: property <background-position> from [unset] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.5) should be [calc(0% + 40px)  calc(0% + 40px),  calc(0% + 40px)  calc(0% + 40px),  calc(0% + 40px)  calc(0% + 40px),  calc(0% + 40px)  calc(0% + 40px)]
PASS Web Animations: property <background-position> from [unset] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.75) should be [calc(0% + 60px)  calc(0% + 60px),  calc(0% + 60px)  calc(0% + 60px),  calc(0% + 60px)  calc(0% + 60px),  calc(0% + 60px)  calc(0% + 60px)]
PASS Web Animations: property <background-position> from [unset] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (1) should be [calc(0% + 80px)  calc(0% + 80px),  calc(0% + 80px)  calc(0% + 80px),  calc(0% + 80px)  calc(0% + 80px),  calc(0% + 80px)  calc(0% + 80px)]
PASS Web Animations: property <background-position> from [unset] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (1.25) should be [calc(0% + 100px) calc(0% + 100px), calc(0% + 100px) calc(0% + 100px), calc(0% + 100px) calc(0% + 100px), calc(0% + 100px) calc(0% + 100px)]
PASS CSS Transitions: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (-0.25) should be [-20px -20px, -20px -20px, -20px -20px, -20px -20px]
PASS CSS Transitions: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0) should be [  0px   0px,   0px   0px,   0px   0px,   0px   0px]
PASS CSS Transitions: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.25) should be [ 20px  20px,  20px  20px,  20px  20px,  20px  20px]
PASS CSS Transitions: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.5) should be [ 40px  40px,  40px  40px,  40px  40px,  40px  40px]
PASS CSS Transitions: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.75) should be [ 60px  60px,  60px  60px,  60px  60px,  60px  60px]
PASS CSS Transitions: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (1) should be [ 80px  80px,  80px  80px,  80px  80px,  80px  80px]
PASS CSS Transitions: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (1.25) should be [100px 100px, 100px 100px, 100px 100px, 100px 100px]
PASS CSS Transitions with transition: all: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (-0.25) should be [-20px -20px, -20px -20px, -20px -20px, -20px -20px]
PASS CSS Transitions with transition: all: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0) should be [  0px   0px,   0px   0px,   0px   0px,   0px   0px]
PASS CSS Transitions with transition: all: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.25) should be [ 20px  20px,  20px  20px,  20px  20px,  20px  20px]
PASS CSS Transitions with transition: all: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.5) should be [ 40px  40px,  40px  40px,  40px  40px,  40px  40px]
PASS CSS Transitions with transition: all: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.75) should be [ 60px  60px,  60px  60px,  60px  60px,  60px  60px]
PASS CSS Transitions with transition: all: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (1) should be [ 80px  80px,  80px  80px,  80px  80px,  80px  80px]
PASS CSS Transitions with transition: all: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (1.25) should be [100px 100px, 100px 100px, 100px 100px, 100px 100px]
PASS CSS Animations: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (-0.25) should be [-20px -20px, -20px -20px, -20px -20px, -20px -20px]
PASS CSS Animations: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0) should be [  0px   0px,   0px   0px,   0px   0px,   0px   0px]
PASS CSS Animations: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.25) should be [ 20px  20px,  20px  20px,  20px  20px,  20px  20px]
PASS CSS Animations: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.5) should be [ 40px  40px,  40px  40px,  40px  40px,  40px  40px]
PASS CSS Animations: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.75) should be [ 60px  60px,  60px  60px,  60px  60px,  60px  60px]
PASS CSS Animations: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (1) should be [ 80px  80px,  80px  80px,  80px  80px,  80px  80px]
PASS CSS Animations: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (1.25) should be [100px 100px, 100px 100px, 100px 100px, 100px 100px]
PASS Web Animations: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (-0.25) should be [-20px -20px, -20px -20px, -20px -20px, -20px -20px]
PASS Web Animations: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0) should be [  0px   0px,   0px   0px,   0px   0px,   0px   0px]
PASS Web Animations: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.25) should be [ 20px  20px,  20px  20px,  20px  20px,  20px  20px]
PASS Web Animations: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.5) should be [ 40px  40px,  40px  40px,  40px  40px,  40px  40px]
PASS Web Animations: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (0.75) should be [ 60px  60px,  60px  60px,  60px  60px,  60px  60px]
PASS Web Animations: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (1) should be [ 80px  80px,  80px  80px,  80px  80px,  80px  80px]
PASS Web Animations: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px] to [80px 80px, 80px 80px, 80px 80px, 80px 80px] at (1.25) should be [100px 100px, 100px 100px, 100px 100px, 100px 100px]
PASS CSS Transitions: property <background-position> from [top 0px left 0px] to [left 80px top 80px] at (-0.25) should be [-20px -20px, -20px -20px, -20px -20px, -20px -20px]
PASS CSS Transitions: property <background-position> from [top 0px left 0px] to [left 80px top 80px] at (0) should be [  0px   0px,   0px   0px,   0px   0px,   0px   0px]
PASS CSS Transitions: property <background-position> from [top 0px left 0px] to [left 80px top 80px] at (0.25) should be [ 20px  20px,  20px  20px,  20px  20px,  20px  20px]
PASS CSS Transitions: property <background-position> from [top 0px left 0px] to [left 80px top 80px] at (0.5) should be [ 40px  40px,  40px  40px,  40px  40px,  40px  40px]
PASS CSS Transitions: property <background-position> from [top 0px left 0px] to [left 80px top 80px] at (0.75) should be [ 60px  60px,  60px  60px,  60px  60px,  60px  60px]
PASS CSS Transitions: property <background-position> from [top 0px left 0px] to [left 80px top 80px] at (1) should be [ 80px  80px,  80px  80px,  80px  80px,  80px  80px]
PASS CSS Transitions: property <background-position> from [top 0px left 0px] to [left 80px top 80px] at (1.25) should be [100px 100px, 100px 100px, 100px 100px, 100px 100px]
PASS CSS Transitions with transition: all: property <background-position> from [top 0px left 0px] to [left 80px top 80px] at (-0.25) should be [-20px -20px, -20px -20px, -20px -20px, -20px -20px]
PASS CSS Transitions with transition: all: property <background-position> from [top 0px left 0px] to [left 80px top 80px] at (0) should be [  0px   0px,   0px   0px,   0px   0px,   0px   0px]
PASS CSS Transitions with transition: all: property <background-position> from [top 0px left 0px] to [left 80px top 80px] at (0.25) should be [ 20px  20px,  20px  20px,  20px  20px,  20px  20px]
PASS CSS Transitions with transition: all: property <background-position> from [top 0px left 0px] to [left 80px top 80px] at (0.5) should be [ 40px  40px,  40px  40px,  40px  40px,  40px  40px]
PASS CSS Transitions with transition: all: property <background-position> from [top 0px left 0px] to [left 80px top 80px] at (0.75) should be [ 60px  60px,  60px  60px,  60px  60px,  60px  60px]
PASS CSS Transitions with transition: all: property <background-position> from [top 0px left 0px] to [left 80px top 80px] at (1) should be [ 80px  80px,  80px  80px,  80px  80px,  80px  80px]
PASS CSS Transitions with transition: all: property <background-position> from [top 0px left 0px] to [left 80px top 80px] at (1.25) should be [100px 100px, 100px 100px, 100px 100px, 100px 100px]
PASS CSS Animations: property <background-position> from [top 0px left 0px] to [left 80px top 80px] at (-0.25) should be [-20px -20px, -20px -20px, -20px -20px, -20px -20px]
PASS CSS Animations: property <background-position> from [top 0px left 0px] to [left 80px top 80px] at (0) should be [  0px   0px,   0px   0px,   0px   0px,   0px   0px]
PASS CSS Animations: property <background-position> from [top 0px left 0px] to [left 80px top 80px] at (0.25) should be [ 20px  20px,  20px  20px,  20px  20px,  20px  20px]
PASS CSS Animations: property <background-position> from [top 0px left 0px] to [left 80px top 80px] at (0.5) should be [ 40px  40px,  40px  40px,  40px  40px,  40px  40px]
PASS CSS Animations: property <background-position> from [top 0px left 0px] to [left 80px top 80px] at (0.75) should be [ 60px  60px,  60px  60px,  60px  60px,  60px  60px]
PASS CSS Animations: property <background-position> from [top 0px left 0px] to [left 80px top 80px] at (1) should be [ 80px  80px,  80px  80px,  80px  80px,  80px  80px]
PASS CSS Animations: property <background-position> from [top 0px left 0px] to [left 80px top 80px] at (1.25) should be [100px 100px, 100px 100px, 100px 100px, 100px 100px]
PASS Web Animations: property <background-position> from [top 0px left 0px] to [left 80px top 80px] at (-0.25) should be [-20px -20px, -20px -20px, -20px -20px, -20px -20px]
PASS Web Animations: property <background-position> from [top 0px left 0px] to [left 80px top 80px] at (0) should be [  0px   0px,   0px   0px,   0px   0px,   0px   0px]
PASS Web Animations: property <background-position> from [top 0px left 0px] to [left 80px top 80px] at (0.25) should be [ 20px  20px,  20px  20px,  20px  20px,  20px  20px]
PASS Web Animations: property <background-position> from [top 0px left 0px] to [left 80px top 80px] at (0.5) should be [ 40px  40px,  40px  40px,  40px  40px,  40px  40px]
PASS Web Animations: property <background-position> from [top 0px left 0px] to [left 80px top 80px] at (0.75) should be [ 60px  60px,  60px  60px,  60px  60px,  60px  60px]
PASS Web Animations: property <background-position> from [top 0px left 0px] to [left 80px top 80px] at (1) should be [ 80px  80px,  80px  80px,  80px  80px,  80px  80px]
PASS Web Animations: property <background-position> from [top 0px left 0px] to [left 80px top 80px] at (1.25) should be [100px 100px, 100px 100px, 100px 100px, 100px 100px]
PASS CSS Transitions: property <background-position> from [0px 0px, 80px 0px] to [40px 40px, 80px 80px, 0px 80px] at (-0.25) should be [-10px -10px, 80px -20px, 0px -20px, 90px -10px]
PASS CSS Transitions: property <background-position> from [0px 0px, 80px 0px] to [40px 40px, 80px 80px, 0px 80px] at (0) should be [  0px   0px, 80px   0px, 0px   0px, 80px   0px]
PASS CSS Transitions: property <background-position> from [0px 0px, 80px 0px] to [40px 40px, 80px 80px, 0px 80px] at (0.25) should be [ 10px  10px, 80px  20px, 0px  20px, 70px  10px]
PASS CSS Transitions: property <background-position> from [0px 0px, 80px 0px] to [40px 40px, 80px 80px, 0px 80px] at (0.5) should be [ 20px  20px, 80px  40px, 0px  40px, 60px  20px]
PASS CSS Transitions: property <background-position> from [0px 0px, 80px 0px] to [40px 40px, 80px 80px, 0px 80px] at (0.75) should be [ 30px  30px, 80px  60px, 0px  60px, 50px  30px]
PASS CSS Transitions: property <background-position> from [0px 0px, 80px 0px] to [40px 40px, 80px 80px, 0px 80px] at (1) should be [ 40px  40px, 80px  80px, 0px  80px, 40px  40px]
PASS CSS Transitions: property <background-position> from [0px 0px, 80px 0px] to [40px 40px, 80px 80px, 0px 80px] at (1.25) should be [ 50px  50px, 80px 100px, 0px 100px, 30px  50px]
PASS CSS Transitions with transition: all: property <background-position> from [0px 0px, 80px 0px] to [40px 40px, 80px 80px, 0px 80px] at (-0.25) should be [-10px -10px, 80px -20px, 0px -20px, 90px -10px]
PASS CSS Transitions with transition: all: property <background-position> from [0px 0px, 80px 0px] to [40px 40px, 80px 80px, 0px 80px] at (0) should be [  0px   0px, 80px   0px, 0px   0px, 80px   0px]
PASS CSS Transitions with transition: all: property <background-position> from [0px 0px, 80px 0px] to [40px 40px, 80px 80px, 0px 80px] at (0.25) should be [ 10px  10px, 80px  20px, 0px  20px, 70px  10px]
PASS CSS Transitions with transition: all: property <background-position> from [0px 0px, 80px 0px] to [40px 40px, 80px 80px, 0px 80px] at (0.5) should be [ 20px  20px, 80px  40px, 0px  40px, 60px  20px]
PASS CSS Transitions with transition: all: property <background-position> from [0px 0px, 80px 0px] to [40px 40px, 80px 80px, 0px 80px] at (0.75) should be [ 30px  30px, 80px  60px, 0px  60px, 50px  30px]
PASS CSS Transitions with transition: all: property <background-position> from [0px 0px, 80px 0px] to [40px 40px, 80px 80px, 0px 80px] at (1) should be [ 40px  40px, 80px  80px, 0px  80px, 40px  40px]
PASS CSS Transitions with transition: all: property <background-position> from [0px 0px, 80px 0px] to [40px 40px, 80px 80px, 0px 80px] at (1.25) should be [ 50px  50px, 80px 100px, 0px 100px, 30px  50px]
PASS CSS Animations: property <background-position> from [0px 0px, 80px 0px] to [40px 40px, 80px 80px, 0px 80px] at (-0.25) should be [-10px -10px, 80px -20px, 0px -20px, 90px -10px]
PASS CSS Animations: property <background-position> from [0px 0px, 80px 0px] to [40px 40px, 80px 80px, 0px 80px] at (0) should be [  0px   0px, 80px   0px, 0px   0px, 80px   0px]
PASS CSS Animations: property <background-position> from [0px 0px, 80px 0px] to [40px 40px, 80px 80px, 0px 80px] at (0.25) should be [ 10px  10px, 80px  20px, 0px  20px, 70px  10px]
PASS CSS Animations: property <background-position> from [0px 0px, 80px 0px] to [40px 40px, 80px 80px, 0px 80px] at (0.5) should be [ 20px  20px, 80px  40px, 0px  40px, 60px  20px]
PASS CSS Animations: property <background-position> from [0px 0px, 80px 0px] to [40px 40px, 80px 80px, 0px 80px] at (0.75) should be [ 30px  30px, 80px  60px, 0px  60px, 50px  30px]
PASS CSS Animations: property <background-position> from [0px 0px, 80px 0px] to [40px 40px, 80px 80px, 0px 80px] at (1) should be [ 40px  40px, 80px  80px, 0px  80px, 40px  40px]
PASS CSS Animations: property <background-position> from [0px 0px, 80px 0px] to [40px 40px, 80px 80px, 0px 80px] at (1.25) should be [ 50px  50px, 80px 100px, 0px 100px, 30px  50px]
PASS Web Animations: property <background-position> from [0px 0px, 80px 0px] to [40px 40px, 80px 80px, 0px 80px] at (-0.25) should be [-10px -10px, 80px -20px, 0px -20px, 90px -10px]
PASS Web Animations: property <background-position> from [0px 0px, 80px 0px] to [40px 40px, 80px 80px, 0px 80px] at (0) should be [  0px   0px, 80px   0px, 0px   0px, 80px   0px]
PASS Web Animations: property <background-position> from [0px 0px, 80px 0px] to [40px 40px, 80px 80px, 0px 80px] at (0.25) should be [ 10px  10px, 80px  20px, 0px  20px, 70px  10px]
PASS Web Animations: property <background-position> from [0px 0px, 80px 0px] to [40px 40px, 80px 80px, 0px 80px] at (0.5) should be [ 20px  20px, 80px  40px, 0px  40px, 60px  20px]
PASS Web Animations: property <background-position> from [0px 0px, 80px 0px] to [40px 40px, 80px 80px, 0px 80px] at (0.75) should be [ 30px  30px, 80px  60px, 0px  60px, 50px  30px]
PASS Web Animations: property <background-position> from [0px 0px, 80px 0px] to [40px 40px, 80px 80px, 0px 80px] at (1) should be [ 40px  40px, 80px  80px, 0px  80px, 40px  40px]
PASS Web Animations: property <background-position> from [0px 0px, 80px 0px] to [40px 40px, 80px 80px, 0px 80px] at (1.25) should be [ 50px  50px, 80px 100px, 0px 100px, 30px  50px]