WPT
wpt / css / css-backgrounds / animations / border-image-outset-composition.html
Spec: CSS Backgrounds ↗
Runs: Chrome 155.0.8042.0 (wpt@0588f3896, 2026-09-04) | Firefox 157.0a1 (wpt@0588f3896, 2026-09-04) | Safari 251 preview (wpt@0588f3896, 2026-09-04) | Ladybird 1.0-b1af2 (wpt@0588f3896, 2026-09-04) | 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 | 112/112 | 112/112 | 112/112 | 74/112 | 56/112 | 19/112 |
| Subtest | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| Compositing CSS Animations: property <border-image-outset> underlying [1 2 3 4] from add [1 2 3 4] to add [101 102 103 104] at (-0.25) should be [0] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing CSS Animations: property <border-image-outset> underlying [1 2 3 4] from add [1 2 3 4] to add [101 102 103 104] at (0) should be [2 4 6 8] | PASS | PASS | PASS | PASS | PASS | FAIL |
| Compositing CSS Animations: property <border-image-outset> underlying [1 2 3 4] from add [1 2 3 4] to add [101 102 103 104] at (0.25) should be [27 29 31 33] | PASS | PASS | PASS | PASS | PASS | FAIL |
| Compositing CSS Animations: property <border-image-outset> underlying [1 2 3 4] from add [1 2 3 4] to add [101 102 103 104] at (0.5) should be [52 54 56 58] | PASS | PASS | PASS | PASS | PASS | FAIL |
| Compositing CSS Animations: property <border-image-outset> underlying [1 2 3 4] from add [1 2 3 4] to add [101 102 103 104] at (0.75) should be [77 79 81 83] | PASS | PASS | PASS | PASS | PASS | FAIL |
| Compositing CSS Animations: property <border-image-outset> underlying [1 2 3 4] from add [1 2 3 4] to add [101 102 103 104] at (1) should be [102 104 106 108] | PASS | PASS | PASS | PASS | PASS | FAIL |
| Compositing CSS Animations: property <border-image-outset> underlying [1 2 3 4] from add [1 2 3 4] to add [101 102 103 104] at (1.25) should be [127 129 131 133] | PASS | PASS | PASS | PASS | PASS | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [1 2 3 4] from add [1 2 3 4] to add [101 102 103 104] at (-0.25) should be [0] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [1 2 3 4] from add [1 2 3 4] to add [101 102 103 104] at (0) should be [2 4 6 8] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [1 2 3 4] from add [1 2 3 4] to add [101 102 103 104] at (0.25) should be [27 29 31 33] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [1 2 3 4] from add [1 2 3 4] to add [101 102 103 104] at (0.5) should be [52 54 56 58] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [1 2 3 4] from add [1 2 3 4] to add [101 102 103 104] at (0.75) should be [77 79 81 83] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [1 2 3 4] from add [1 2 3 4] to add [101 102 103 104] at (1) should be [102 104 106 108] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [1 2 3 4] from add [1 2 3 4] to add [101 102 103 104] at (1.25) should be [127 129 131 133] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Compositing CSS Animations: property <border-image-outset> underlying [100 200 300 400] from add [100] to add [200 300 500] at (-0.25) should be [175 250 300 450] | PASS | PASS | PASS | FAIL | PASS | FAIL |
| Compositing CSS Animations: property <border-image-outset> underlying [100 200 300 400] from add [100] to add [200 300 500] at (0) should be [200 300 400 500] | PASS | PASS | PASS | FAIL | PASS | FAIL |
| Compositing CSS Animations: property <border-image-outset> underlying [100 200 300 400] from add [100] to add [200 300 500] at (0.25) should be [225 350 500 550] | PASS | PASS | PASS | FAIL | PASS | FAIL |
| Compositing CSS Animations: property <border-image-outset> underlying [100 200 300 400] from add [100] to add [200 300 500] at (0.5) should be [250 400 600 600] | PASS | PASS | PASS | FAIL | PASS | FAIL |
| Compositing CSS Animations: property <border-image-outset> underlying [100 200 300 400] from add [100] to add [200 300 500] at (0.75) should be [275 450 700 650] | PASS | PASS | PASS | FAIL | PASS | FAIL |
| Compositing CSS Animations: property <border-image-outset> underlying [100 200 300 400] from add [100] to add [200 300 500] at (1) should be [300 500 800 700] | PASS | PASS | PASS | FAIL | PASS | FAIL |
| Compositing CSS Animations: property <border-image-outset> underlying [100 200 300 400] from add [100] to add [200 300 500] at (1.25) should be [325 550 900 750] | PASS | PASS | PASS | FAIL | PASS | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [100 200 300 400] from add [100] to add [200 300 500] at (-0.25) should be [175 250 300 450] | PASS | PASS | PASS | FAIL | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [100 200 300 400] from add [100] to add [200 300 500] at (0) should be [200 300 400 500] | PASS | PASS | PASS | FAIL | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [100 200 300 400] from add [100] to add [200 300 500] at (0.25) should be [225 350 500 550] | PASS | PASS | PASS | FAIL | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [100 200 300 400] from add [100] to add [200 300 500] at (0.5) should be [250 400 600 600] | PASS | PASS | PASS | FAIL | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [100 200 300 400] from add [100] to add [200 300 500] at (0.75) should be [275 450 700 650] | PASS | PASS | PASS | FAIL | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [100 200 300 400] from add [100] to add [200 300 500] at (1) should be [300 500 800 700] | PASS | PASS | PASS | FAIL | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [100 200 300 400] from add [100] to add [200 300 500] at (1.25) should be [325 550 900 750] | PASS | PASS | PASS | FAIL | FAIL | FAIL |
| Compositing CSS Animations: property <border-image-outset> underlying [1 2 3px 4px] from add [1 2 3px 4px] to add [101 102 103px 104px] at (-0.25) should be [0 0 0px 0px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing CSS Animations: property <border-image-outset> underlying [1 2 3px 4px] from add [1 2 3px 4px] to add [101 102 103px 104px] at (0) should be [2 4 6px 8px] | PASS | PASS | PASS | PASS | PASS | FAIL |
| Compositing CSS Animations: property <border-image-outset> underlying [1 2 3px 4px] from add [1 2 3px 4px] to add [101 102 103px 104px] at (0.25) should be [27 29 31px 33px] | PASS | PASS | PASS | PASS | PASS | FAIL |
| Compositing CSS Animations: property <border-image-outset> underlying [1 2 3px 4px] from add [1 2 3px 4px] to add [101 102 103px 104px] at (0.5) should be [52 54 56px 58px] | PASS | PASS | PASS | PASS | PASS | FAIL |
| Compositing CSS Animations: property <border-image-outset> underlying [1 2 3px 4px] from add [1 2 3px 4px] to add [101 102 103px 104px] at (0.75) should be [77 79 81px 83px] | PASS | PASS | PASS | PASS | PASS | FAIL |
| Compositing CSS Animations: property <border-image-outset> underlying [1 2 3px 4px] from add [1 2 3px 4px] to add [101 102 103px 104px] at (1) should be [102 104 106px 108px] | PASS | PASS | PASS | PASS | PASS | FAIL |
| Compositing CSS Animations: property <border-image-outset> underlying [1 2 3px 4px] from add [1 2 3px 4px] to add [101 102 103px 104px] at (1.25) should be [127 129 131px 133px] | PASS | PASS | PASS | PASS | PASS | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [1 2 3px 4px] from add [1 2 3px 4px] to add [101 102 103px 104px] at (-0.25) should be [0 0 0px 0px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [1 2 3px 4px] from add [1 2 3px 4px] to add [101 102 103px 104px] at (0) should be [2 4 6px 8px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [1 2 3px 4px] from add [1 2 3px 4px] to add [101 102 103px 104px] at (0.25) should be [27 29 31px 33px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [1 2 3px 4px] from add [1 2 3px 4px] to add [101 102 103px 104px] at (0.5) should be [52 54 56px 58px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [1 2 3px 4px] from add [1 2 3px 4px] to add [101 102 103px 104px] at (0.75) should be [77 79 81px 83px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [1 2 3px 4px] from add [1 2 3px 4px] to add [101 102 103px 104px] at (1) should be [102 104 106px 108px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [1 2 3px 4px] from add [1 2 3px 4px] to add [101 102 103px 104px] at (1.25) should be [127 129 131px 133px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Compositing CSS Animations: property <border-image-outset> underlying [10px 20px] from add [190px 180px 290px 280px] to add [90px 80px] at (-0.25) should be [225px 225px 350px 350px] | PASS | PASS | PASS | FAIL | PASS | FAIL |
| Compositing CSS Animations: property <border-image-outset> underlying [10px 20px] from add [190px 180px 290px 280px] to add [90px 80px] at (0) should be [200px 200px 300px 300px] | PASS | PASS | PASS | FAIL | PASS | FAIL |
| Compositing CSS Animations: property <border-image-outset> underlying [10px 20px] from add [190px 180px 290px 280px] to add [90px 80px] at (0.25) should be [175px 175px 250px 250px] | PASS | PASS | PASS | FAIL | PASS | FAIL |
| Compositing CSS Animations: property <border-image-outset> underlying [10px 20px] from add [190px 180px 290px 280px] to add [90px 80px] at (0.5) should be [150px 150px 200px 200px] | PASS | PASS | PASS | FAIL | PASS | FAIL |
| Compositing CSS Animations: property <border-image-outset> underlying [10px 20px] from add [190px 180px 290px 280px] to add [90px 80px] at (0.75) should be [125px 125px 150px 150px] | PASS | PASS | PASS | FAIL | PASS | FAIL |
| Compositing CSS Animations: property <border-image-outset> underlying [10px 20px] from add [190px 180px 290px 280px] to add [90px 80px] at (1) should be [100px] | PASS | PASS | PASS | PASS | PASS | FAIL |
| Compositing CSS Animations: property <border-image-outset> underlying [10px 20px] from add [190px 180px 290px 280px] to add [90px 80px] at (1.25) should be [75px 75px 50px 50px] | PASS | PASS | PASS | FAIL | PASS | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [10px 20px] from add [190px 180px 290px 280px] to add [90px 80px] at (-0.25) should be [225px 225px 350px 350px] | PASS | PASS | PASS | FAIL | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [10px 20px] from add [190px 180px 290px 280px] to add [90px 80px] at (0) should be [200px 200px 300px 300px] | PASS | PASS | PASS | FAIL | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [10px 20px] from add [190px 180px 290px 280px] to add [90px 80px] at (0.25) should be [175px 175px 250px 250px] | PASS | PASS | PASS | FAIL | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [10px 20px] from add [190px 180px 290px 280px] to add [90px 80px] at (0.5) should be [150px 150px 200px 200px] | PASS | PASS | PASS | FAIL | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [10px 20px] from add [190px 180px 290px 280px] to add [90px 80px] at (0.75) should be [125px 125px 150px 150px] | PASS | PASS | PASS | FAIL | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [10px 20px] from add [190px 180px 290px 280px] to add [90px 80px] at (1) should be [100px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [10px 20px] from add [190px 180px 290px 280px] to add [90px 80px] at (1.25) should be [75px 75px 50px 50px] | PASS | PASS | PASS | FAIL | FAIL | FAIL |
| Compositing CSS Animations: property <border-image-outset> underlying [10 20px] from replace [100 100px] to add [190 180px] at (-0.25) should be [75 75px] | PASS | PASS | PASS | PASS | PASS | FAIL |
| Compositing CSS Animations: property <border-image-outset> underlying [10 20px] from replace [100 100px] to add [190 180px] at (0) should be [100 100px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing CSS Animations: property <border-image-outset> underlying [10 20px] from replace [100 100px] to add [190 180px] at (0.25) should be [125 125px] | PASS | PASS | PASS | PASS | PASS | FAIL |
| Compositing CSS Animations: property <border-image-outset> underlying [10 20px] from replace [100 100px] to add [190 180px] at (0.5) should be [150 150px] | PASS | PASS | PASS | PASS | PASS | FAIL |
| Compositing CSS Animations: property <border-image-outset> underlying [10 20px] from replace [100 100px] to add [190 180px] at (0.75) should be [175 175px] | PASS | PASS | PASS | PASS | PASS | FAIL |
| Compositing CSS Animations: property <border-image-outset> underlying [10 20px] from replace [100 100px] to add [190 180px] at (1) should be [200 200px] | PASS | PASS | PASS | PASS | PASS | FAIL |
| Compositing CSS Animations: property <border-image-outset> underlying [10 20px] from replace [100 100px] to add [190 180px] at (1.25) should be [225 225px] | PASS | PASS | PASS | PASS | PASS | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [10 20px] from replace [100 100px] to add [190 180px] at (-0.25) should be [75 75px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [10 20px] from replace [100 100px] to add [190 180px] at (0) should be [100 100px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [10 20px] from replace [100 100px] to add [190 180px] at (0.25) should be [125 125px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [10 20px] from replace [100 100px] to add [190 180px] at (0.5) should be [150 150px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [10 20px] from replace [100 100px] to add [190 180px] at (0.75) should be [175 175px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [10 20px] from replace [100 100px] to add [190 180px] at (1) should be [200 200px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [10 20px] from replace [100 100px] to add [190 180px] at (1.25) should be [225 225px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Compositing CSS Animations: property <border-image-outset> underlying [10px 20] from add [90px 80] to replace [0px 0 0px 0] at (-0.25) should be [125px 125] | PASS | PASS | PASS | FAIL | PASS | FAIL |
| Compositing CSS Animations: property <border-image-outset> underlying [10px 20] from add [90px 80] to replace [0px 0 0px 0] at (0) should be [100px 100] | PASS | PASS | PASS | PASS | PASS | FAIL |
| Compositing CSS Animations: property <border-image-outset> underlying [10px 20] from add [90px 80] to replace [0px 0 0px 0] at (0.25) should be [75px 75] | PASS | PASS | PASS | FAIL | PASS | FAIL |
| Compositing CSS Animations: property <border-image-outset> underlying [10px 20] from add [90px 80] to replace [0px 0 0px 0] at (0.5) should be [50px 50] | PASS | PASS | PASS | FAIL | PASS | FAIL |
| Compositing CSS Animations: property <border-image-outset> underlying [10px 20] from add [90px 80] to replace [0px 0 0px 0] at (0.75) should be [25px 25] | PASS | PASS | PASS | FAIL | PASS | FAIL |
| Compositing CSS Animations: property <border-image-outset> underlying [10px 20] from add [90px 80] to replace [0px 0 0px 0] at (1) should be [0px 0] | PASS | PASS | PASS | FAIL | PASS | PASS |
| Compositing CSS Animations: property <border-image-outset> underlying [10px 20] from add [90px 80] to replace [0px 0 0px 0] at (1.25) should be [0px 0] | PASS | PASS | PASS | FAIL | PASS | PASS |
| Compositing Web Animations: property <border-image-outset> underlying [10px 20] from add [90px 80] to replace [0px 0 0px 0] at (-0.25) should be [125px 125] | PASS | PASS | PASS | FAIL | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [10px 20] from add [90px 80] to replace [0px 0 0px 0] at (0) should be [100px 100] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [10px 20] from add [90px 80] to replace [0px 0 0px 0] at (0.25) should be [75px 75] | PASS | PASS | PASS | FAIL | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [10px 20] from add [90px 80] to replace [0px 0 0px 0] at (0.5) should be [50px 50] | PASS | PASS | PASS | FAIL | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [10px 20] from add [90px 80] to replace [0px 0 0px 0] at (0.75) should be [25px 25] | PASS | PASS | PASS | FAIL | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [10px 20] from add [90px 80] to replace [0px 0 0px 0] at (1) should be [0px 0] | PASS | PASS | PASS | FAIL | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [10px 20] from add [90px 80] to replace [0px 0 0px 0] at (1.25) should be [0px 0] | PASS | PASS | PASS | FAIL | FAIL | FAIL |
| Compositing CSS Animations: property <border-image-outset> underlying [10 20] from add [100px 150px] to add [200px 250px] at (-0.25) should be [75px 125px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing CSS Animations: property <border-image-outset> underlying [10 20] from add [100px 150px] to add [200px 250px] at (0) should be [100px 150px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing CSS Animations: property <border-image-outset> underlying [10 20] from add [100px 150px] to add [200px 250px] at (0.25) should be [125px 175px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing CSS Animations: property <border-image-outset> underlying [10 20] from add [100px 150px] to add [200px 250px] at (0.5) should be [150px 200px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing CSS Animations: property <border-image-outset> underlying [10 20] from add [100px 150px] to add [200px 250px] at (0.75) should be [175px 225px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing CSS Animations: property <border-image-outset> underlying [10 20] from add [100px 150px] to add [200px 250px] at (1) should be [200px 250px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing CSS Animations: property <border-image-outset> underlying [10 20] from add [100px 150px] to add [200px 250px] at (1.25) should be [225px 275px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing Web Animations: property <border-image-outset> underlying [10 20] from add [100px 150px] to add [200px 250px] at (-0.25) should be [75px 125px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [10 20] from add [100px 150px] to add [200px 250px] at (0) should be [100px 150px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [10 20] from add [100px 150px] to add [200px 250px] at (0.25) should be [125px 175px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [10 20] from add [100px 150px] to add [200px 250px] at (0.5) should be [150px 200px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [10 20] from add [100px 150px] to add [200px 250px] at (0.75) should be [175px 225px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [10 20] from add [100px 150px] to add [200px 250px] at (1) should be [200px 250px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [10 20] from add [100px 150px] to add [200px 250px] at (1.25) should be [225px 275px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Compositing CSS Animations: property <border-image-outset> underlying [10 20] from add [100 150px] to add [200px 250] at (-0.25) should be [100 150px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing CSS Animations: property <border-image-outset> underlying [10 20] from add [100 150px] to add [200px 250] at (0) should be [100 150px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing CSS Animations: property <border-image-outset> underlying [10 20] from add [100 150px] to add [200px 250] at (0.25) should be [100 150px] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing CSS Animations: property <border-image-outset> underlying [10 20] from add [100 150px] to add [200px 250] at (0.5) should be [200px 250] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing CSS Animations: property <border-image-outset> underlying [10 20] from add [100 150px] to add [200px 250] at (0.75) should be [200px 250] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing CSS Animations: property <border-image-outset> underlying [10 20] from add [100 150px] to add [200px 250] at (1) should be [200px 250] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing CSS Animations: property <border-image-outset> underlying [10 20] from add [100 150px] to add [200px 250] at (1.25) should be [200px 250] | PASS | PASS | PASS | PASS | PASS | PASS |
| Compositing Web Animations: property <border-image-outset> underlying [10 20] from add [100 150px] to add [200px 250] at (-0.25) should be [100 150px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [10 20] from add [100 150px] to add [200px 250] at (0) should be [100 150px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [10 20] from add [100 150px] to add [200px 250] at (0.25) should be [100 150px] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [10 20] from add [100 150px] to add [200px 250] at (0.5) should be [200px 250] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [10 20] from add [100 150px] to add [200px 250] at (0.75) should be [200px 250] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [10 20] from add [100 150px] to add [200px 250] at (1) should be [200px 250] | PASS | PASS | PASS | PASS | FAIL | FAIL |
| Compositing Web Animations: property <border-image-outset> underlying [10 20] from add [100 150px] to add [200px 250] at (1.25) should be [200px 250] | PASS | PASS | PASS | PASS | FAIL | FAIL |