WPT
wpt / css / css-backgrounds / animations / border-width-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 1.0-4611b (wpt@b89af32bc, 2026-09-05) | 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
| Chrome | Firefox | Safari | Ladybird | Servo | Blitz | |
|---|---|---|---|---|---|---|
| Total | 256/256 | 256/256 | 256/256 | 252/256 | 192/256 | 192/256 |
| Subtest | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| CSS Transitions: property <border-width> from [20px 40px 60px 80px] to [30px 50px 70px 90px] at (-0.3) should be [17px 37px 57px 77px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-width> from [20px 40px 60px 80px] to [30px 50px 70px 90px] at (0) should be [20px 40px 60px 80px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-width> from [20px 40px 60px 80px] to [30px 50px 70px 90px] at (0.3) should be [23px 43px 63px 83px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-width> from [20px 40px 60px 80px] to [30px 50px 70px 90px] at (0.6) should be [26px 46px 66px 86px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-width> from [20px 40px 60px 80px] to [30px 50px 70px 90px] at (1) should be [30px 50px 70px 90px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-width> from [20px 40px 60px 80px] to [30px 50px 70px 90px] at (1.5) should be [35px 55px 75px 95px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-width> from [20px 40px 60px 80px] to [30px 50px 70px 90px] at (-0.3) should be [17px 37px 57px 77px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-width> from [20px 40px 60px 80px] to [30px 50px 70px 90px] at (0) should be [20px 40px 60px 80px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-width> from [20px 40px 60px 80px] to [30px 50px 70px 90px] at (0.3) should be [23px 43px 63px 83px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-width> from [20px 40px 60px 80px] to [30px 50px 70px 90px] at (0.6) should be [26px 46px 66px 86px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-width> from [20px 40px 60px 80px] to [30px 50px 70px 90px] at (1) should be [30px 50px 70px 90px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-width> from [20px 40px 60px 80px] to [30px 50px 70px 90px] at (1.5) should be [35px 55px 75px 95px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-width> from [20px 40px 60px 80px] to [30px 50px 70px 90px] at (-0.3) should be [17px 37px 57px 77px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-width> from [20px 40px 60px 80px] to [30px 50px 70px 90px] at (0) should be [20px 40px 60px 80px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-width> from [20px 40px 60px 80px] to [30px 50px 70px 90px] at (0.3) should be [23px 43px 63px 83px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-width> from [20px 40px 60px 80px] to [30px 50px 70px 90px] at (0.6) should be [26px 46px 66px 86px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-width> from [20px 40px 60px 80px] to [30px 50px 70px 90px] at (1) should be [30px 50px 70px 90px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-width> from [20px 40px 60px 80px] to [30px 50px 70px 90px] at (1.5) should be [35px 55px 75px 95px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Web Animations: property <border-width> from [20px 40px 60px 80px] to [30px 50px 70px 90px] at (-0.3) should be [17px 37px 57px 77px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-width> from [20px 40px 60px 80px] to [30px 50px 70px 90px] at (0) should be [20px 40px 60px 80px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-width> from [20px 40px 60px 80px] to [30px 50px 70px 90px] at (0.3) should be [23px 43px 63px 83px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-width> from [20px 40px 60px 80px] to [30px 50px 70px 90px] at (0.6) should be [26px 46px 66px 86px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-width> from [20px 40px 60px 80px] to [30px 50px 70px 90px] at (1) should be [30px 50px 70px 90px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-width> from [20px 40px 60px 80px] to [30px 50px 70px 90px] at (1.5) should be [35px 55px 75px 95px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| CSS Transitions: property <border-left-width> from neutral to [20px] at (-0.3) should be [7px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-left-width> from neutral to [20px] at (0) should be [10px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-left-width> from neutral to [20px] at (0.3) should be [13px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-left-width> from neutral to [20px] at (0.6) should be [16px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-left-width> from neutral to [20px] at (1) should be [20px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-left-width> from neutral to [20px] at (1.5) should be [25px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-left-width> from neutral to [20px] at (-0.3) should be [7px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-left-width> from neutral to [20px] at (0) should be [10px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-left-width> from neutral to [20px] at (0.3) should be [13px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-left-width> from neutral to [20px] at (0.6) should be [16px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-left-width> from neutral to [20px] at (1) should be [20px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-left-width> from neutral to [20px] at (1.5) should be [25px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-left-width> from neutral to [20px] at (-0.3) should be [7px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-left-width> from neutral to [20px] at (0) should be [10px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-left-width> from neutral to [20px] at (0.3) should be [13px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-left-width> from neutral to [20px] at (0.6) should be [16px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-left-width> from neutral to [20px] at (1) should be [20px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-left-width> from neutral to [20px] at (1.5) should be [25px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Web Animations: property <border-left-width> from neutral to [20px] at (-0.3) should be [7px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-left-width> from neutral to [20px] at (0) should be [10px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-left-width> from neutral to [20px] at (0.3) should be [13px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-left-width> from neutral to [20px] at (0.6) should be [16px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-left-width> from neutral to [20px] at (1) should be [20px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-left-width> from neutral to [20px] at (1.5) should be [25px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| CSS Transitions: property <border-left-width> from [initial] to [23px] at (-0.3) should be [0px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-left-width> from [initial] to [23px] at (0) should be [3px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-left-width> from [initial] to [23px] at (0.3) should be [9px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-left-width> from [initial] to [23px] at (0.6) should be [15px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-left-width> from [initial] to [23px] at (1) should be [23px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-left-width> from [initial] to [23px] at (1.5) should be [33px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-left-width> from [initial] to [23px] at (-0.3) should be [0px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-left-width> from [initial] to [23px] at (0) should be [3px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-left-width> from [initial] to [23px] at (0.3) should be [9px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-left-width> from [initial] to [23px] at (0.6) should be [15px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-left-width> from [initial] to [23px] at (1) should be [23px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-left-width> from [initial] to [23px] at (1.5) should be [33px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-left-width> from [initial] to [23px] at (-0.3) should be [0px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-left-width> from [initial] to [23px] at (0) should be [3px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-left-width> from [initial] to [23px] at (0.3) should be [9px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-left-width> from [initial] to [23px] at (0.6) should be [15px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-left-width> from [initial] to [23px] at (1) should be [23px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-left-width> from [initial] to [23px] at (1.5) should be [33px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Web Animations: property <border-left-width> from [initial] to [23px] at (-0.3) should be [0px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-left-width> from [initial] to [23px] at (0) should be [3px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-left-width> from [initial] to [23px] at (0.3) should be [9px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-left-width> from [initial] to [23px] at (0.6) should be [15px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-left-width> from [initial] to [23px] at (1) should be [23px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-left-width> from [initial] to [23px] at (1.5) should be [33px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| CSS Transitions: property <border-left-width> from [inherit] to [20px] at (-0.3) should be [33px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-left-width> from [inherit] to [20px] at (0) should be [30px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-left-width> from [inherit] to [20px] at (0.3) should be [27px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-left-width> from [inherit] to [20px] at (0.6) should be [24px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-left-width> from [inherit] to [20px] at (1) should be [20px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-left-width> from [inherit] to [20px] at (1.5) should be [15px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-left-width> from [inherit] to [20px] at (-0.3) should be [33px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-left-width> from [inherit] to [20px] at (0) should be [30px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-left-width> from [inherit] to [20px] at (0.3) should be [27px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-left-width> from [inherit] to [20px] at (0.6) should be [24px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-left-width> from [inherit] to [20px] at (1) should be [20px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-left-width> from [inherit] to [20px] at (1.5) should be [15px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-left-width> from [inherit] to [20px] at (-0.3) should be [33px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-left-width> from [inherit] to [20px] at (0) should be [30px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-left-width> from [inherit] to [20px] at (0.3) should be [27px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-left-width> from [inherit] to [20px] at (0.6) should be [24px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-left-width> from [inherit] to [20px] at (1) should be [20px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-left-width> from [inherit] to [20px] at (1.5) should be [15px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Web Animations: property <border-left-width> from [inherit] to [20px] at (-0.3) should be [33px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-left-width> from [inherit] to [20px] at (0) should be [30px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-left-width> from [inherit] to [20px] at (0.3) should be [27px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-left-width> from [inherit] to [20px] at (0.6) should be [24px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-left-width> from [inherit] to [20px] at (1) should be [20px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-left-width> from [inherit] to [20px] at (1.5) should be [15px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| CSS Transitions: property <border-left-width> from [unset] to [23px] at (-0.3) should be [0px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-left-width> from [unset] to [23px] at (0) should be [3px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-left-width> from [unset] to [23px] at (0.3) should be [9px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-left-width> from [unset] to [23px] at (0.6) should be [15px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-left-width> from [unset] to [23px] at (1) should be [23px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-left-width> from [unset] to [23px] at (1.5) should be [33px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-left-width> from [unset] to [23px] at (-0.3) should be [0px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-left-width> from [unset] to [23px] at (0) should be [3px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-left-width> from [unset] to [23px] at (0.3) should be [9px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-left-width> from [unset] to [23px] at (0.6) should be [15px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-left-width> from [unset] to [23px] at (1) should be [23px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-left-width> from [unset] to [23px] at (1.5) should be [33px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-left-width> from [unset] to [23px] at (-0.3) should be [0px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-left-width> from [unset] to [23px] at (0) should be [3px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-left-width> from [unset] to [23px] at (0.3) should be [9px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-left-width> from [unset] to [23px] at (0.6) should be [15px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-left-width> from [unset] to [23px] at (1) should be [23px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-left-width> from [unset] to [23px] at (1.5) should be [33px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Web Animations: property <border-left-width> from [unset] to [23px] at (-0.3) should be [0px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-left-width> from [unset] to [23px] at (0) should be [3px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-left-width> from [unset] to [23px] at (0.3) should be [9px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-left-width> from [unset] to [23px] at (0.6) should be [15px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-left-width> from [unset] to [23px] at (1) should be [23px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-left-width> from [unset] to [23px] at (1.5) should be [33px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| CSS Transitions: property <border-left-width> from [0px] to [10px] at (-0.3) should be [0px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-left-width> from [0px] to [10px] at (0) should be [0px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-left-width> from [0px] to [10px] at (0.3) should be [3px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-left-width> from [0px] to [10px] at (0.6) should be [6px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-left-width> from [0px] to [10px] at (1) should be [10px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-left-width> from [0px] to [10px] at (1.5) should be [15px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-left-width> from [0px] to [10px] at (-0.3) should be [0px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-left-width> from [0px] to [10px] at (0) should be [0px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-left-width> from [0px] to [10px] at (0.3) should be [3px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-left-width> from [0px] to [10px] at (0.6) should be [6px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-left-width> from [0px] to [10px] at (1) should be [10px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-left-width> from [0px] to [10px] at (1.5) should be [15px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-left-width> from [0px] to [10px] at (-0.3) should be [0px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-left-width> from [0px] to [10px] at (0) should be [0px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-left-width> from [0px] to [10px] at (0.3) should be [3px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-left-width> from [0px] to [10px] at (0.6) should be [6px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-left-width> from [0px] to [10px] at (1) should be [10px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-left-width> from [0px] to [10px] at (1.5) should be [15px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Web Animations: property <border-left-width> from [0px] to [10px] at (-0.3) should be [0px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-left-width> from [0px] to [10px] at (0) should be [0px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-left-width> from [0px] to [10px] at (0.3) should be [3px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-left-width> from [0px] to [10px] at (0.6) should be [6px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-left-width> from [0px] to [10px] at (1) should be [10px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-left-width> from [0px] to [10px] at (1.5) should be [15px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| CSS Transitions: property <border-bottom-width> from [thick] to [15px] at (-2) should be [0px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-bottom-width> from [thick] to [15px] at (-0.3) should be [2px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-bottom-width> from [thick] to [15px] at (0) should be [5px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-bottom-width> from [thick] to [15px] at (0.3) should be [8px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-bottom-width> from [thick] to [15px] at (0.6) should be [11px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-bottom-width> from [thick] to [15px] at (1) should be [15px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-bottom-width> from [thick] to [15px] at (1.5) should be [20px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-bottom-width> from [thick] to [15px] at (-2) should be [0px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-bottom-width> from [thick] to [15px] at (-0.3) should be [2px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-bottom-width> from [thick] to [15px] at (0) should be [5px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-bottom-width> from [thick] to [15px] at (0.3) should be [8px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-bottom-width> from [thick] to [15px] at (0.6) should be [11px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-bottom-width> from [thick] to [15px] at (1) should be [15px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-bottom-width> from [thick] to [15px] at (1.5) should be [20px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-bottom-width> from [thick] to [15px] at (-2) should be [0px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-bottom-width> from [thick] to [15px] at (-0.3) should be [2px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-bottom-width> from [thick] to [15px] at (0) should be [5px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-bottom-width> from [thick] to [15px] at (0.3) should be [8px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-bottom-width> from [thick] to [15px] at (0.6) should be [11px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-bottom-width> from [thick] to [15px] at (1) should be [15px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-bottom-width> from [thick] to [15px] at (1.5) should be [20px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Web Animations: property <border-bottom-width> from [thick] to [15px] at (-2) should be [0px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-bottom-width> from [thick] to [15px] at (-0.3) should be [2px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-bottom-width> from [thick] to [15px] at (0) should be [5px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-bottom-width> from [thick] to [15px] at (0.3) should be [8px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-bottom-width> from [thick] to [15px] at (0.6) should be [11px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-bottom-width> from [thick] to [15px] at (1) should be [15px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-bottom-width> from [thick] to [15px] at (1.5) should be [20px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| CSS Transitions: property <border-left-width> from [medium] to [13px] at (-2) should be [0px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-left-width> from [medium] to [13px] at (-0.25) should be [0.5px] | PASS | PASS | PASS | FAIL | PASS | PASS |
| CSS Transitions: property <border-left-width> from [medium] to [13px] at (0) should be [3px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-left-width> from [medium] to [13px] at (0.3) should be [6px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-left-width> from [medium] to [13px] at (0.6) should be [9px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-left-width> from [medium] to [13px] at (1) should be [13px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-left-width> from [medium] to [13px] at (1.5) should be [18px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-left-width> from [medium] to [13px] at (-2) should be [0px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-left-width> from [medium] to [13px] at (-0.25) should be [0.5px] | PASS | PASS | PASS | FAIL | PASS | PASS |
| CSS Transitions with transition: all: property <border-left-width> from [medium] to [13px] at (0) should be [3px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-left-width> from [medium] to [13px] at (0.3) should be [6px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-left-width> from [medium] to [13px] at (0.6) should be [9px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-left-width> from [medium] to [13px] at (1) should be [13px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-left-width> from [medium] to [13px] at (1.5) should be [18px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-left-width> from [medium] to [13px] at (-2) should be [0px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-left-width> from [medium] to [13px] at (-0.25) should be [0.5px] | PASS | PASS | PASS | FAIL | PASS | PASS |
| CSS Animations: property <border-left-width> from [medium] to [13px] at (0) should be [3px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-left-width> from [medium] to [13px] at (0.3) should be [6px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-left-width> from [medium] to [13px] at (0.6) should be [9px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-left-width> from [medium] to [13px] at (1) should be [13px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-left-width> from [medium] to [13px] at (1.5) should be [18px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Web Animations: property <border-left-width> from [medium] to [13px] at (-2) should be [0px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-left-width> from [medium] to [13px] at (-0.25) should be [0.5px] | PASS | PASS | PASS | FAIL | FAIL | FAIL |
| Web Animations: property <border-left-width> from [medium] to [13px] at (0) should be [3px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-left-width> from [medium] to [13px] at (0.3) should be [6px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-left-width> from [medium] to [13px] at (0.6) should be [9px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-left-width> from [medium] to [13px] at (1) should be [13px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-left-width> from [medium] to [13px] at (1.5) should be [18px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| CSS Transitions: property <border-right-width> from [thin] to [11px] at (-2) should be [0px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-right-width> from [thin] to [11px] at (-0.3) should be [0px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-right-width> from [thin] to [11px] at (0) should be [1px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-right-width> from [thin] to [11px] at (0.3) should be [4px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-right-width> from [thin] to [11px] at (0.6) should be [7px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-right-width> from [thin] to [11px] at (1) should be [11px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-right-width> from [thin] to [11px] at (1.5) should be [16px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-right-width> from [thin] to [11px] at (-2) should be [0px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-right-width> from [thin] to [11px] at (-0.3) should be [0px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-right-width> from [thin] to [11px] at (0) should be [1px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-right-width> from [thin] to [11px] at (0.3) should be [4px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-right-width> from [thin] to [11px] at (0.6) should be [7px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-right-width> from [thin] to [11px] at (1) should be [11px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-right-width> from [thin] to [11px] at (1.5) should be [16px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-right-width> from [thin] to [11px] at (-2) should be [0px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-right-width> from [thin] to [11px] at (-0.3) should be [0px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-right-width> from [thin] to [11px] at (0) should be [1px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-right-width> from [thin] to [11px] at (0.3) should be [4px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-right-width> from [thin] to [11px] at (0.6) should be [7px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-right-width> from [thin] to [11px] at (1) should be [11px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-right-width> from [thin] to [11px] at (1.5) should be [16px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Web Animations: property <border-right-width> from [thin] to [11px] at (-2) should be [0px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-right-width> from [thin] to [11px] at (-0.3) should be [0px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-right-width> from [thin] to [11px] at (0) should be [1px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-right-width> from [thin] to [11px] at (0.3) should be [4px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-right-width> from [thin] to [11px] at (0.6) should be [7px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-right-width> from [thin] to [11px] at (1) should be [11px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-right-width> from [thin] to [11px] at (1.5) should be [16px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| CSS Transitions: property <border-top-width> from [15px] to [thick] at (-2) should be [35px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-top-width> from [15px] to [thick] at (-0.3) should be [18px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-top-width> from [15px] to [thick] at (0) should be [15px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-top-width> from [15px] to [thick] at (0.3) should be [12px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-top-width> from [15px] to [thick] at (0.6) should be [9px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-top-width> from [15px] to [thick] at (1) should be [5px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions: property <border-top-width> from [15px] to [thick] at (1.5) should be [0px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-top-width> from [15px] to [thick] at (-2) should be [35px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-top-width> from [15px] to [thick] at (-0.3) should be [18px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-top-width> from [15px] to [thick] at (0) should be [15px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-top-width> from [15px] to [thick] at (0.3) should be [12px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-top-width> from [15px] to [thick] at (0.6) should be [9px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-top-width> from [15px] to [thick] at (1) should be [5px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Transitions with transition: all: property <border-top-width> from [15px] to [thick] at (1.5) should be [0px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-top-width> from [15px] to [thick] at (-2) should be [35px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-top-width> from [15px] to [thick] at (-0.3) should be [18px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-top-width> from [15px] to [thick] at (0) should be [15px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-top-width> from [15px] to [thick] at (0.3) should be [12px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-top-width> from [15px] to [thick] at (0.6) should be [9px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-top-width> from [15px] to [thick] at (1) should be [5px] | PASS | PASS | PASS | PASS | PASS | PASS |
| CSS Animations: property <border-top-width> from [15px] to [thick] at (1.5) should be [0px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Web Animations: property <border-top-width> from [15px] to [thick] at (-2) should be [35px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-top-width> from [15px] to [thick] at (-0.3) should be [18px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-top-width> from [15px] to [thick] at (0) should be [15px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-top-width> from [15px] to [thick] at (0.3) should be [12px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-top-width> from [15px] to [thick] at (0.6) should be [9px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-top-width> from [15px] to [thick] at (1) should be [5px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Web Animations: property <border-top-width> from [15px] to [thick] at (1.5) should be [0px] | PASS | PASS | PASS | PASS | FAIL | FAIL |