CSS outline properties

The CSS outline properties draw a border around an element that does not affect layout, making it ideal for highlighting. This covers the outline shorthand, as well as outline-width, outline-style, outline-color and outline-offset.

Spec	https://drafts.csswg.org/css-ui/
Status	W3C Candidate Recommendation

IE	Edge	Firefox	Chrome	Safari	Opera
			103
		100	102
		99	101	TP
11 (1,2)	99	98	100	15.4	83
10 (1,2)	98	97	99	15.2-15.3	82
9 (1,2)	97	96	98	15.1	81
8 (2)	96	95	97	15	80
Show all
7	95	94	96	14.1	79
6	94	93	95	14	78
5.5	93	92	94	13.1	77
	92	91	93	13	76
	91	90	92	12.1	75
	90	89	91	12	74
	89	88	90	11.1	73
	88	87	89	11	72
	87	86	88	10.1	71
	86	85	87	10	70
	85	84	86	9.1	69
	84	83	85	9	68
	83	82	84	8	67
	81	81	83	7.1	66
	80	80	81	7	65
	79	79	80	6.1	64
	18	78	79	6	63
	17	77	78	5.1	62
	16	76	77	5	60
	15	75	76	4	58
	14 (1,2)	74	75	3.2	57
	13 (1,2)	73	74	3.1	56
	12 (1,2)	72	73		55
		71	72		54
		70	71		53
		69	70		52
		68	69		51
		67	68		50
		66	67		49
		65	66		48
		64	65		47
		63	64		46
		62	63		45
		61	62		44
		60	61		43
		59	60		42
		58	59		41
		57	58		40
		56	57		39
		55	56		38
		54	55		37
		53	54		36
		52	53		35
		51	52		34
		50	51		33
		49	50		32
		48	49		31
		47	48		30
		46	47		29
		45	46		28
		44	45		27
		43	44		26
		42	43		25
		41	42		24
		40	41		23
		39	40		22
		38	39		21
		37	38		20
		36	37		19
		35	36		18
		34	35		17
		33	34		16
		32	33		15
		31	32		12.1 (1)
		30	31		12
		29	30		11.6
		28	29		11.5 (2)
		27	28		11.1 (2)
		26	27		11 (2)
		25	26		10.6 (2)
		24	25		10.5 (2)
		23	24		10.0-10.1 (2)
		22	23		9.5-9.6 (2)
		21	22		9 (2)
		20	21
		19	20
		18	19
		17	18
		16	17
		15	16
		14	15
		13	14
		12	13
		11	12
		10	11
		9	10
		8	9
		7	8
		6	7
		5	6
		4	5
		3.6	4
		3.5
		3
		2

Safari on iOS	Opera Mini	Android Browser	Blackberry Browser	Opera Mobile	Android Chrome	Android Firefox	IE Mobile	Android UC Browser	Samsung Internet	QQ Browser	Baidu Browser	KaiOS Browser
15.4	all	99	10	64	100	98	11 (1,2)	12.12	16.0	10.4	7.12	2.5
15.2-15.3		4.4.3-4.4.4	7	12.1			10 (1,2)		15.0
15.0-15.1		4.4		12					14.0
14.5-14.8		4.2-4.3		11.5 (2)					13.0
Show all
14.0-14.4		4.1		11.1 (2)					12.0
13.4-13.7		4		11 (2)					11.1-11.2
13.3		3		10 (2)					10.1
13.2		2.3							9.2
13.0-13.1		2.2							8.2
12.2-12.5		2.1							7.2-7.4
12.0-12.1									6.2-6.4
11.3-11.4									5.0-5.4
11.0-11.2									4
10.3
10.0-10.2
9.3
9.0-9.2
8.1-8.4
8
7.0-7.1
6.0-6.1
5.0-5.1
4.2-4.3
4.0-4.1
3.2

Notes

Firefox also supports the non-standard -moz-outline-radius property that acts similar to border-radius.

1. Also supports the value of invert for outline-color. (support of this value is optional for browsers)

2. Does not support outline-offset.

Resources

• CSS Basic User Interface Module Level 3
• MDN Web Docs - CSS outline