WPT

This page compares scores on the Web Platform Tests across web engines, using the latest master runs from wpt.fyi and Blitz's own test runner.

wpt / css / css-backgrounds / parsing

Spec: CSS Backgrounds ↗

Runs: Chrome 155.0.8042.0 (wpt@a1ecd0c09, 2026-09-04) | Firefox 157.0a1 (wpt@a1ecd0c09, 2026-09-04) | Safari 251 preview (wpt@e7122b73f, 2026-09-04) | Ladybird 1.0-52f0f (wpt@0588f3896, 2026-09-04) | Servo Servo 0.6 (wpt@2c385f65e, 2026-09-04) | Blitz a50cb8971 (wpt@a95401e4e, 2026-09-03)

Sort areas: alphabetical | by subtest count

Area	Chrome	Firefox	Safari	Ladybird	Servo	Blitz
Total	89.4%819/916	93.2%854/916	96.3%882/916	85.5%783/916	90.9%833/916	90.0%824/916

Test	Chrome	Firefox	Safari	Ladybird	Servo	Blitz
background-attachment-computed.html	2/5	5/5	5/5	2/5	3/5	3/5
background-attachment-invalid.html	2/2	2/2	2/2	2/2	2/2	2/2
background-attachment-valid.html	2/2	2/2	2/2	2/2	1/2	1/2
background-clip-computed.html	8/11	7/11	9/11	5/11	6/11	6/11
background-clip-invalid.html	5/5	5/5	5/5	5/5	5/5	5/5
background-clip-valid.html	9/9	4/9	6/9	4/9	3/9	3/9
background-color-computed.html	7/7	7/7	7/7	7/7	7/7	7/7
background-color-invalid.html	3/3	3/3	3/3	3/3	3/3	3/3
background-color-valid.html	9/9	9/9	9/9	9/9	9/9	9/9
background-computed.html	13/39	31/39	35/39	10/39	31/39	31/39
background-image-computed.sub.html	48/48	48/48	48/48	41/48	47/48	47/48
background-image-invalid.html	12/12	12/12	12/12	12/12	12/12	12/12
background-image-valid.html	13/13	6/13	6/13	3/13	3/13	3/13
background-invalid.html	2/2	2/2	2/2	1/2	2/2	2/2
background-origin-computed.html	4/7	7/7	7/7	4/7	7/7	7/7
background-origin-invalid.html	4/4	4/4	4/4	4/4	4/4	4/4
background-origin-valid.html	4/4	4/4	4/4	4/4	4/4	4/4
background-position-computed.html	29/32	32/32	32/32	29/32	32/32	32/32
background-position-invalid.html	11/11	11/11	11/11	11/11	11/11	11/11
background-position-valid.html	31/31	31/31	31/31	31/31	31/31	31/31
background-position-x-computed.html	10/19	16/19	17/19	10/19	16/19	16/19
background-position-x-invalid.html	9/9	9/9	9/9	9/9	9/9	9/9
background-position-x-valid.html	12/15	12/15	15/15	12/15	12/15	12/15
background-position-y-computed.html	10/19	16/19	17/19	10/19	16/19	16/19
background-position-y-invalid.html	9/9	9/9	9/9	9/9	9/9	9/9
background-position-y-valid.html	12/15	12/15	15/15	12/15	12/15	12/15
background-repeat-computed.html	10/13	13/13	13/13	10/13	13/13	13/13
background-repeat-invalid.html	3/3	3/3	3/3	3/3	3/3	3/3
background-repeat-valid.html	4/4	4/4	4/4	4/4	4/4	4/4
background-shorthand-serialization.html	9/11	6/11	8/11	4/11	6/11	0/11
background-size-computed.html	12/16	14/16	16/16	12/16	16/16	16/16
background-size-invalid.html	3/3	3/3	3/3	3/3	3/3	3/3
background-size-valid.html	9/9	9/9	9/9	9/9	9/9	9/9
background-valid.html	21/46	27/46	36/46	26/46	17/46	17/46
border-color-computed.html	8/8	8/8	8/8	8/8	8/8	8/8
border-color-invalid.html	3/3	3/3	3/3	3/3	3/3	3/3
border-color-shorthand.html	20/20	20/20	20/20	20/20	20/20	20/20
border-color-valid.html	7/7	7/7	7/7	7/7	7/7	7/7
border-image-invalid.html	17/17	17/17	17/17	17/17	17/17	17/17
border-image-outset-computed.html	7/7	7/7	7/7	7/7	5/7	5/7
border-image-outset-invalid.html	5/5	5/5	5/5	5/5	5/5	5/5
border-image-outset-valid.html	3/3	3/3	3/3	3/3	3/3	3/3
border-image-repeat-computed.html	3/3	3/3	3/3	3/3	3/3	3/3
border-image-repeat-invalid.html	2/2	2/2	2/2	2/2	2/2	2/2
border-image-repeat-valid.html	3/3	3/3	3/3	3/3	3/3	3/3
border-image-shorthand.sub.html	30/30	30/30	30/30	30/30	30/30	30/30
border-image-slice-computed.html	7/7	7/7	7/7	5/7	5/7	5/7
border-image-slice-invalid.html	6/6	6/6	6/6	6/6	6/6	6/6
border-image-slice-valid.html	4/4	4/4	4/4	4/4	4/4	4/4
border-image-source-computed.sub.html	10/10	10/10	9/10	4/10	10/10	9/10
border-image-source-invalid.html	2/2	2/2	2/2	2/2	2/2	2/2
border-image-source-valid.html	2/2	2/2	2/2	2/2	2/2	2/2
border-image-valid.html	30/30	30/30	30/30	30/30	30/30	30/30
border-image-width-computed.html	12/12	12/12	12/12	12/12	12/12	12/12
border-image-width-invalid.html	5/5	5/5	5/5	5/5	5/5	5/5
border-image-width-valid.html	5/5	5/5	5/5	5/5	5/5	5/5
border-invalid.html	3/3	3/3	3/3	3/3	3/3	3/3
border-radius-computed.html	14/14	14/14	14/14	14/14	14/14	14/14
border-radius-invalid.html	11/11	11/11	11/11	11/11	11/11	11/11
border-radius-valid.html	23/23	23/23	23/23	23/23	23/23	23/23
border-shorthand.html	36/36	36/36	36/36	36/36	36/36	36/36
border-style-computed.html	8/8	8/8	8/8	8/8	8/8	8/8
border-style-invalid.html	2/2	2/2	2/2	2/2	2/2	2/2
border-style-shorthand.html	20/20	20/20	20/20	20/20	20/20	20/20
border-style-valid.html	8/8	8/8	8/8	8/8	8/8	8/8
border-valid.html	6/6	6/6	6/6	6/6	6/6	6/6
border-width-computed.html	11/11	11/11	11/11	11/11	11/11	11/11
border-width-invalid.html	3/3	3/3	3/3	3/3	3/3	3/3
border-width-shorthand.html	20/20	20/20	20/20	20/20	20/20	20/20
border-width-valid.html	6/6	6/6	6/6	6/6	6/6	6/6
box-shadow-computed.html	4/4	4/4	4/4	4/4	4/4	4/4
box-shadow-invalid.html	40/40	40/40	40/40	40/40	40/40	40/40
box-shadow-valid.html	38/38	38/38	38/38	38/38	38/38	38/38
webkit-border-radius-valid.html	24/25	25/25	25/25	25/25	25/25	23/25