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New semantic elements

HTML5 offers some new elements, primarily for semantic purposes. The elements include: section, article, aside, header, footer, nav, figure, figcaption, time, mark & main.

Spec	https://html.spec.whatwg.org/multipage/semantics.html#sections
Status	WHATWG Living Standard

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

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 ⁽¹⁾	56	10 ⁽²⁾	37	59	54	11 ⁽²⁾	11.4 ⁽²⁾	5	1.2	7.12
10.0-10.2		4.4.3-4.4.4	7 ⁽²⁾	12.1 ⁽²⁾			10 ⁽²⁾		4
9.3		4.4		12 ⁽²⁾
9.0-9.2		4.2-4.3 ⁽²⁾		11.5 ⁽²⁾
Show all
8.1-8.4		4.1 ⁽²⁾		11.1 ⁽²⁾
8		4 ⁽²⁾		11 ⁽²⁾
7.0-7.1		3 ⁽²⁾		10 ⁽¹⁾
6.0-6.1 ⁽²⁾		2.3 ⁽²⁾
5.0-5.1 ⁽²⁾		2.2 ⁽²⁾
4.2-4.3 ⁽²⁾		2.1 ⁽¹⁾
4.0-4.1 ⁽²⁾
3.2 ⁽¹⁾

Notes

Partial support refers to missing the default styling, as technically the elements are considered "unknown". This is easily taken care of by manually setting the default display value for each tag.
Partial support refers to only the <main> element (added later to the spec) being "unknown", though it can still be used and styled.

Bugs

While the time and data elements can be used and work fine in all browsers, currently only Firefox and Edge 14+ recognize them officially as HTMLTimeElement and HTMLDataElement objects.

Resources

Data by caniuse.com
Licensed under the Creative Commons Attribution License v4.0.
http://caniuse.com/#feat=html5semantic