CSS3 Box-shadow

Method of displaying an inner or outer shadow effect to elements

Spec	https://www.w3.org/TR/css3-background/#box-shadow
Status	W3C Candidate Recommendation

IE	Edge	Firefox	Chrome	Safari	Opera
			98
		95	97
		94	96	TP
11	95	93	95	15	80
10	94	92	94	14.1	79
9	93	91	93	14	78
8	92	90	92	13.1	77
Show all
7	91	89	91	13	76
6	90	88	90	12.1	75
5.5	89	87	89	12	74
	88	86	88	11.1	73
	87	85	87	11	72
	86	84	86	10.1	71
	85	83	85	10	70
	84	82	84	9.1	69
	83	81	83	9	68
	81	80	81	8	67
	80	79	80	7.1	66
	79	78	79	7	65
	18	77	78	6.1	64
	17	76	77	6	63
	16	75	76	5.1	62
	15	74	75	5 (*)	60
	14	73	74	4 (1,*)	58
	13	72	73	3.2 (1,*)	57
	12	71	72	3.1 (1,*)	56
		70	71		55
		69	70		54
		68	69		53
		67	68		52
		66	67		51
		65	66		50
		64	65		49
		63	64		48
		62	63		47
		61	62		46
		60	61		45
		59	60		44
		58	59		43
		57	58		42
		56	57		41
		55	56		40
		54	55		39
		53	54		38
		52	53		37
		51	52		36
		50	51		35
		49	50		34
		48	49		33
		47	48		32
		46	47		31
		45	46		30
		44	45		29
		43	44		28
		42	43		27
		41	42		26
		40	41		25
		39	40		24
		38	39		23
		37	38		22
		36	37		21
		35	36		20
		34	35		19
		33	34		18
		32	33		17
		31	32		16
		30	31		15
		29	30		12.1
		28	29		12
		27	28		11.6
		26	27		11.5
		25	26		11.1
		24	25		11
		23	24		10.6
		22	23		10.5
		21	22		10.0-10.1
		20	21		9.5-9.6
		19	20		9
		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	all	94	10	64	94	92	11	12.12	15.0	10.4	7.12	2.5
14.5-14.8		4.4.3-4.4.4	7 (*)	12.1			10		14.0
14.0-14.4		4.4		12					13.0
13.4-13.7		4.2-4.3		11.5					12.0
Show all
13.3		4.1		11.1					11.1-11.2
13.2		4		11					10.1
13.0-13.1		3 (1,*)		10					9.2
12.2-12.5		2.3 (1,*)							8.2
12.0-12.1		2.2 (1,*)							7.2-7.4
11.3-11.4		2.1 (1,*)							6.2-6.4
11.0-11.2									5.0-5.4
10.3									4
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 (1,*)

Notes

Can be partially emulated in older IE versions using the non-standard "shadow" filter.

1. Partial support in Safari, iOS Safari and Android Browser refers to missing "inset", blur radius value, and multiple shadow support.

^* Partial support with prefix.

Bugs

• Edge and IE up to 11 suppress box-shadow in tables with border-collapse:collapse. test case, workaround

• Safari 6, iOS 6 and Android 2.3 default browser don't work with a 0px value for "blur-radius".
  e.g. -webkit-box-shadow: 5px 1px 0px 1px #f04e29;
  doesn't work, but
  -webkit-box-shadow: 5px 1px 1px 1px #f04e29
  does.

• iOS 8 has a bug where the box shadow disappears when zooming in a certain amount. test case

Resources

• MDN Web Docs - box-shadow
• Live editor
• Demo of various effects
• WebPlatform Docs