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CSS font-size-adjust

Method of adjusting the font size in a matter that relates to the height of lowercase vs. uppercase letters. This makes it easier to set the size of fallback fonts.

Spec	http://www.w3.org/TR/css-fonts-3/#font-size-adjust-prop
Status	W3C Candidate Recommendation

IE	Edge	Firefox	Chrome	Safari	Opera
		57	62 ⁽¹⁾
		56	61 ⁽¹⁾	TP	48 ⁽¹⁾
	16	55	60 ⁽¹⁾	11	47 ⁽¹⁾
11	15	54	59 ⁽¹⁾	10.1	46 ⁽¹⁾
10	14	53	58 ⁽¹⁾	10	45 ⁽¹⁾
9	13	52	57 ⁽¹⁾	9.1	44 ⁽¹⁾
8	12	51	56 ⁽¹⁾	9	43 ⁽¹⁾
Show all
7		50	55 ⁽¹⁾	8	42 ⁽¹⁾
6		49	54 ⁽¹⁾	7.1	41 ⁽¹⁾
5.5		48	53 ⁽¹⁾	7	40 ⁽¹⁾
		47	52 ⁽¹⁾	6.1	39 ⁽¹⁾
		46	51 ⁽¹⁾	6	38 ⁽¹⁾
		45	50 ⁽¹⁾	5.1	37 ⁽¹⁾
		44	49 ⁽¹⁾	5	36 ⁽¹⁾
		43	48 ⁽¹⁾	4	35 ⁽¹⁾
		42	47 ⁽¹⁾	3.2	34 ⁽¹⁾
		41	46 ⁽¹⁾	3.1	33 ⁽¹⁾
		40	45 ⁽¹⁾		32 ⁽¹⁾
		39	44 ⁽¹⁾		31 ⁽¹⁾
		38	43 ⁽¹⁾		30 ⁽¹⁾
		37	42		29
		36	41		28
		35	40		27
		34	39		26
		33	38		25
		32	37		24
		31	36		23
		30	35		22
		29	34		21
		28	33		20
		27	32		19
		26	31		18
		25	30		17
		24	29		16
		23	28		15
		22	27		12.1
		21	26		12
		20	25		11.6
		19	24		11.5
		18	23		11.1
		17	22		11
		16	21		10.6
		15	20		10.5
		14	19		10.0-10.1
		13	18		9.5-9.6
		12	17		9
		11	16
		10	15
		9	14
		8	13
		7	12
		6	11
		5	10
		4	9
		3.6	8
		3.5	7
		3	6
		2	5
			4

iOS Safari	Opera Mini	Android Browser	Blackberry Browser	Opera Mobile	Android Chrome	Android Firefox	IE Mobile	Android UC Browser	Samsung Internet	QQ Browser	Baidu Browser
11
10.3	all	56	10	37	59	54 ⁽²⁾	11	11.4	5	1.2 ⁽¹⁾	7.12
10.0-10.2		4.4.3-4.4.4	7	12.1			10		4
9.3		4.4		12
9.0-9.2		4.2-4.3		11.5
Show all
8.1-8.4		4.1		11.1
8		4		11
7.0-7.1		3		10
6.0-6.1		2.3
5.0-5.1		2.2
4.2-4.3		2.1
4.0-4.1
3.2

Notes

Enabled through the "experimental Web Platform features" flag in chrome://flags
Does not appear to work on Firefox mobile, despite recognition of the property.

Resources

Data by caniuse.com
Licensed under the Creative Commons Attribution License v4.0.
http://caniuse.com/#feat=font-size-adjust