CSS text-size-adjust

On mobile devices, the text-size-adjust CSS property allows Web authors to control if and how the text-inflating algorithm is applied to the textual content of the element it is applied to.

Spec	https://w3c.github.io/csswg-drafts/css-size-adjust/
Status	Unofficial / Note

IE	Edge	Firefox	Chrome	Safari	Opera
			108
		107	107	TP
		106	106	16.1
11	105	105	105	16.0	91
10	104	104	104	15.6	90
9	103	103	103	15.5	89
8	102	102	102	15.4	88
Show all
7	101	101	101	15.2-15.3	87
6	100	100	100	15.1	86
5.5	99	99	99	15	85
	98	98	98	14.1	84
	97	97	97	14	83
	96	96	96	13.1	82
	95	95	95	13	81
	94	94	94	12.1	80
	93	93	93	12	79
	92	92	92	11.1	78
	91	91	91	11	77
	90	90	90	10.1	76
	89	89	89	10	75
	88	88	88	9.1	74
	87	87	87	9	73
	86	86	86	8	72
	85	85	85	7.1	71
	84	84	84	7	70
	83	83	83	6.1	69
	81	82	81	6	68
	80	81	80	5.1 (2)	67
	79	80	79	5	66
	18 (*)	79	78	4	65
	17 (*)	78	77	3.2	64
	16 (*)	77	76	3.1	63
	15 (*)	76	75		62
	14 (*)	75	74		60
	13 (*)	74	73		58
	12 (*)	73	72		57
		72	71		56
		71	70		55
		70	69		54
		69	68		53
		68	67		52
		67	66		51
		66	65		50
		65	64		49
		64	63		48
		63	62		47
		62	61		46
		61	60		45
		60	59		44
		59	58		43
		58	57		42
		57	56		41
		56	55		40
		55	54		39
		54	53		38
		53	52		37
		52	51		36
		51	50		35
		50	49		34
		49	48		33
		48	47		32
		47	46		31
		46	45		30
		45	44		29
		44	43		28
		43	42		27
		42	41		26
		41	40		25
		40	39		24
		39	38		23
		38	37		22
		37	36		21
		36	35		20
		35	34		19
		34	33		18
		33	32		17
		32	31		16
		31	30		15
		30	29		12.1
		29	28		12
		28	27		11.6
		27	26 (2)		11.5
		26	25		11.1
		25	24		11
		24	23		10.6
		23	22		10.5
		22	21		10.0-10.1
		21	20		9.5-9.6
		20	19		9
		19	18
		18	17
		17	16
		16	15
		15	14
		14	13
		13	12
		12	11
		11	10
		10	9
		9	8
		8	7
		7	6
		6	5
		5	4
		4
		3.6
		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
16.1 (*)
16.0 (*)	all	105	10	64	105	104 (*)	11 (1,*)	13.4	18.0	13.1	13.18	2.5
15.6 (*)		4.4.3-4.4.4	7	12.1			10 (1,*)		17.0
15.5 (*)		4.4		12					16.0
15.4 (*)		4.2-4.3		11.5					15.0
Show all
15.2-15.3 (*)		4.1		11.1					14.0
15.0-15.1 (*)		4		11					13.0
14.5-14.8 (*)		3		10					12.0
14.0-14.4 (*)		2.3							11.1-11.2
13.4-13.7 (*)		2.2							10.1
13.3 (*)		2.1							9.2
13.2 (*)									8.2
13.0-13.1 (*)									7.2-7.4
12.2-12.5 (*)									6.2-6.4
12.0-12.1 (*)									5.0-5.4
11.3-11.4 (*)									4
11.0-11.2 (*)
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

1. If the viewport size is set using a <meta> element, the -ms-text-size-adjust property is ignored. See MDN

2. Old versions of WebKit-based desktop browsers (Chrome<27, Safari<6) suffer from a bug where if -webkit-text-size-adjust is explicitly set to none, instead of ignoring the property, the browsers will prevent the user from zooming in or out on the webpage.

^* Partial support with prefix.

Resources

• MDN Web Docs - text-size-adjust
• Mozilla Bug #1226116: Unprefix -moz-text-size-adjust