Comparison of layout engines (Cascading Style Sheets)

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Cascading Style Sheets

The following tables compare CSS compatibility and support for a number of layout engines. Please see the individual products' articles for further information. Unless otherwise specified in footnotes, comparisons are based on the stable versions without any add-ons, extensions or external programs.

Explanation of the tables

Engine nomenclature

Rather than the names of web browsers and HTML to PDF converters, the names of the underlying engines are used. Some of the software and online converters that use the various engines are listed below.

Layout engine	Release version	Preview version	Used by
Amaya	11.4.7[1]	N/A	No longer developed; Amaya
Blink	537.36	source code[note 1]	Chromium/Chrome (28+), Opera (15+), Sleipnir, Vivaldi, Yandex, Liebao and Samsung Browser
EdgeHTML	14.14393[2]	N/A	Microsoft Edge, Universal Windows Platform (UWP) JavaScript apps
Gecko	Standard 55.0.1 / 10 August 2017 (2017-08-10)[3] ESR 52.3.0 / 8 August 2017 (2017-08-08)[4]	Beta & Developer Edition 56.0beta / August 8, 2017 (2017-08-08)[5][6] semiweekly release Nightly 57.0a1 / August 2, 2017 (2017-08-02)[7][8] daily release	All Mozilla software, including Firefox; SeaMonkey and Galeon; Camino; K-Meleon; Flock (up to 2.x); Debian IceWeasel; GNU IceCat (formerly GNU IceWeasel); Cyberfox; Icedove, Iceape and Iceowl; Firefox for Android ("Fennec"). Also used by the Maple platform in 2010 and 2011 Samsung "SmartTV" devices which are based on the build used in Firefox 2.5. The Nokia Asha platform also uses Gecko for web apps rendering.
Goanna	27.4.1 (August 3, 2017 (2017-08-03)[9]) [±]		Pale Moon and FossaMail
KHTML	4.12.3[10]	N/A	Konqueror[note 2]
Martha	?	?	PDFreactor, Nimbudocs Editor and edit-on NG. Uses the Apache Batik library for SVG rendering.
Presto	2.12.388	N/A	No longer developed; Opera and Opera Mobile use Blink now; Nintendo DS & DSi Browser; Internet Channel
Prince	11	N/A	HTML to PDF converters: Prince (previously called PrinceXML), DocRaptor. The information in the Prince columns is also true of Prince for Books, a related layout engine.
Tasman	(IE 5.2.3 for Mac)	N/A	No longer developed (aborted in 2003); Internet Explorer 5+ for Mac OS X
Trident	7.0 (IE 11)	N/A	Internet Explorer and other Internet Explorer shells like Maxthon (Microsoft Windows operating systems only), Windows Phone 8
WebKit	534.20	nightly build[note 3]	Tizen (both OS and browser), Safari (both desktop and mobile), Google Chrome (before 28), Maxthon 3, Shiira, iCab 4, OmniWeb 5.5+, Web, Adobe AIR, Midori, surf, Adobe Dreamweaver CS4 and CS5, Android browser, Palm webOS browser, Symbian S60 browser, OWB, Steam, Rekonq, Arora, Flock (version 3+), RockMelt, Dolphin Browser, Konqueror[note 2]. Used by the LG Smart TV platform to enable web content on TVs. HTML to PDF converters: wkhtmltopdf, PhantomJS, Pdfcrowd[11], http://www.online-convert.com/[12].

Values

Values indicate the level of support in the most recent version of the layout engine, or (if a version number is given) in the specified version. Version numbers without any other value indicate the version at which the layout engine first fully supported the feature.

Value	Meaning
Yes	Indicates that the layout engine fully supports this property/element when valid values are used.
No	Indicates that the property/element is completely ignored.
Partial	Indicates that the property/element is understood, but that not all values are supported. Supported values are implemented correctly.
Incorrect	Indicates that the property/element is understood, but that it is not implemented correctly in all cases.
Experimental	Indicates that the property/element is understood, but supported under an alternate name. May be incomplete or buggy.
Dropped	Indicates that the property/element is no longer supported.
Nightly build	Indicates that the property/element is supported to some extent in an experimental/nightly build. Future support is expected.
Depends	Indicates that the property/element is supported only on certain platforms, or if certain settings are configured.

Acronyms

• CSS1 : Cascading Style Sheets (CSS1) Level 1 Specification^{[spec 1]}
• CSS2 : Cascading Style Sheets Level 2 Revision 1 (CSS 2.1) Specification^{[spec 2]}
• ML1 : CSS Module Level 1 (≠ CSS1)
• CSS3 : CSS Module Level 3
• CSS4 : CSS Module Level 4

Grammar and rules

			Trident	EdgeHTML	Gecko	WebKit	KHTML	Presto	Prince	Martha
CSS2	!important	Weight increasing	7.0	12	1.0	85	Yes	1.0	Yes	?
	/*Comment*/	Comments	3.0	12	1.0	85	Yes	1.0	Yes
	@import	Import stylesheet	8.0	12	1.0	Yes	Yes	1.0	2.1	Yes[m 1]
	@charset	Character set	5.5	12	1.0	Yes	4.2.3	1.0	Yes	Incorrect[m 2]
	@media	Media-specific rules	5.5	12	1.0	Yes	Yes	1.0	5.1	Yes[m 1]
css3- namespace	@namespace	Namespace declaration	9.0[t 1]	12	1.0	Yes	Yes	1.0	5.0	Yes[m 1]
earlier draft of css- conditional3	@document	Restriction by URLs	No	No	6.0	No	No	No	No	No[m 1]
css3- animations	@keyframes	Animation key	10.0[t 2]	12	16.0	Experimental	No	2.12	No	No[m 1]
css3- conditional	@supports	Conditional Rules	No	12	22.0[g 1]	28.0[w 1]	No	2.12	11	No[m 1]
css-counter- styles-3	@counter-style	Custom Counter Styles	No	No	33.0[g 2]	No	No	No	No	No[m 1]
css-device- adapt	@viewport	Viewport, Device Adaptation	10.0[t 3]	12.0	No[w 2]	No	No	2.7.62[p 1]	No	No[m 1]
filter- effects-1	@filter	Filter	No	No	35.0	Experimental	No	No	No	No[m 1]
Page
CSS2	@page	For paged media	8.0	12	19.0[g 3]	Nightly Build[w 3]	No	1.0	6.0	Yes[m 1]
css3-page	@top-left-corner	Margin boxes[spec 3]	No	No	No	No[w 4]	No	No	5.0	Yes[m 3]
	@top-left
	@top-center
	@top-right
	@top-right-corner
	@bottom-left-corner
	@bottom-left
	@bottom-center
	@bottom-right
	@bottom-right-corner
	@left-top
	@left-middle
	@left-bottom
	@right-top
	@right-middle
	@right-bottom
Font
css-fonts-3	@font-face	Define font	9.0[t 4]	12	1.9.1	525	4.3	2.2	6.0	Yes[m 4]
	@font-feature-values	Define font features	No	No	34.0	No	No	No	No	No
	@annotation	Font feature value block
	@styleset		No	No		No	No	No	No
	@swash		No	No		No	No	No	No
	@ornaments		No	No		No	No	No	No
	@stylistic		No	No		No	No	No	No
	@character-variant		No	No		No	No	No	No
			Trident	EdgeHTML	Gecko	WebKit	KHTML	Presto	Prince	Martha

Trident grammar and rule notes

1. !important — Prior to 7.0, !important doesn't override rules defined later in the same declaration block.
2. @import — Prior to 8.0, media type support is broken. For @import <URL> <MEDIA>, IE requests as the URL "<URL> <MEDIA>" and will include the url() token and/or quotes in the URL, too, if present. Cannot import more than 35 stylesheets.

Presto grammar and rule notes

1. @import — Whilst Gecko, WebKit and iCab download all media stylesheets immediately, Opera only downloads handheld, print, projection and screen media, as well as speech if "voice" feature is enabled and TV, on TV devices. Text browser emulation mode is only a user stylesheet, so it does not switch to tty media type. This is consistent with older text browsers, which do not respect any CSS.

Selectors

			Trident	EdgeHTML	Gecko	WebKit	KHTML	Presto	Prince	Martha
Element selectors[spec 4]
CSS2	*	Universal	7.0	12	1.0	85	Yes	1.0	Yes	?
	E	Element	4.0	12	1.0	85	Yes		Yes
	E.class	Class	7.0	12	1.0	85	Yes		Yes
	E#id	ID	4.0	12	1.0	85	Yes		Yes
css3- selectors	ns|E	Namespaced	9.0	12	1.0	Yes	Yes		Yes
Relationship selectors
CSS2	E F	Descendant	4.0	12	1.0	85	Yes	1.0	Yes	?
	E > F	Child	7.0	12	1.0	85	Yes		Yes
	E + F	Direct adjacent	7.0	12	1.0	85	Yes		Yes
css3- selectors	E ~ F	Indirect adjacent	7.0	12	1.7	412	3.3.2	2.0	Yes
selectors4	E /for/ F	Reference combinators	No	No	No	No	No	No	No
	E! > F	Subject	No	No	No[g 4]	No	No	No	No
	F || E	Column relation	No	No	No	No	No	No	No
Attribute selectors
CSS2	E[attr]	Has	7.0	12	1.0	85	Yes	1.0	Yes	Yes[m 5]
	E[attr="value"]	Equals	7.0	12	1.0	Yes	Yes		Yes
	E[attr~="value"]	Contains (space-separated)	7.0	12	1.0	Yes	Yes		Yes
	E[attr|="value"]	Contains (hyphen-separated)	7.0	12	1.0	Yes	Yes		Yes	No[m 5] (?)
css3- selectors	E[attr^="value"]	Begins with	7.0	12	1.0	Yes	3.4	1.0	Yes	Yes[m 5]
	E[attr$="value"]	Ends with	7.0	12	1.0	Yes	3.4	2.0	Yes
	E[attr*="value"]	Contains substring	7.0	12	1.0	Yes	3.4		Yes
	E[ns|attr]	Namespaced	7.0	12	1.0	Yes	3.4		Yes	?
selectors4	E[foo="bar" i]	Case-sensitivity	No	No	No	No	No	No	11	No[m 5]
Pseudo-classes
CSS2	E:link	Unvisited hyperlink	3.0	12	1.0	85	Yes	1.0	6.0	No[m 6]
	E:visited	Visited hyperlink	3.0	12	1.0	85	Yes		Yes
	E:active	Active	8.0	1.0	12	85	Yes		Yes
	E:hover	Mouseover	7.0	12	1.0	419.3	Yes		Yes
	E:focus	Focused	8.0	12	1.0	Yes	Yes		Yes
	E:first-child	First child	7.0	12	1.0	85	Yes		Yes	Yes[m 6]
	E:lang()	Language	8.0	12	1.2	525	3.4		Yes	No[m 6]
	@page:first	First page	8.0	12	No[g 5]	Yes[w 5]	No		Yes	Yes[m 1]
	@page:left	Left page
	@page:right	Right page
css3- selectors	E:root	Root	9.0	12	1.0	85	3.4	2.1	Yes	No[m 6]
	E:not()	Negation								Yes[m 6]
	E:empty	Empty			1.8	412				No[m 6]
	E:first-of-type	First child of type			1.9.1	525				Yes[m 6]
	E:last-child	Last child			1.0
	E:last-of-type	Last child of type			1.9.1
	E:only-child	Only child			1.8					No[m 6]
	E:only-of-type	Only child of type			1.9.1					Yes[m 6]
	E:nth-child	Nth child			1.9.1					Yes[m 6]
	E:nth-last-child	Nth last child			1.9.1
	E:nth-of-type	Nth child of type			1.9.1
	E:nth-last-of-type	Nth last child of type			1.9.1
	E:target	Target			1.3			2.5	No	No[m 6]
	E:enabled	Enabled state			1.8			2.0
	E:disabled	Disabled state			1.8
	E:checked	Checked state			1.0
selectors4	E:indeterminate	Indeterminate state			1.9.2	522	No	No
	E:default	Default	No	No	1.9	Yes[w 6]	4.3	2.0
	E:valid	Valid	10.0[t 5]	12	1.8	Yes[w 7]	No
	E:invalid	Invalid	10.0[t 6]	12
	E:in-range	In range	No	13		Yes[w 8]
	E:out-of-range	Out of range	No	13
	E:required	Required	10.0[t 7]	12	2.0[g 6]	Yes[w 9]
	E:optional	Optional	10.0[t 8]	12
	E:read-only	Read-only	No	13	Experimental[g 7]	No	Incorrect	Incorrect
	E:read-write	Read and write	No	13
	E:not(s1, s2)	Negations	No	No	No	No	No	No	11
	E:matches(s1, s2)	Matches-any			No[g 8]				11 (different specificity)
	E:has(s1)	Relational pseudo-class			No				11
	E:dir(ltr)	Directionality			17[g 9]				No
	E:lang(zh, *-hant)	Languages			No
	E:any-link	Hyperlink			50.0[g 10]
	E:local-link	Local link			No
	E:local-link(0)	Local link
	E:scope	Contextual reference			20[g 11]				11
	E:current	Time-dimensional : current			No				No
	E:current(s)	Time-dimensional : current
	E:past	Time-dimensional : past
	E:future	Time-dimensional : future
	E:nth-match(n of selector)	Nth child of
	E:nth-last-match(n of selector)	Nth last child of
	E:column(selector)	Column
	E:nth-column(n)	Nth column
	E:nth-last-column(n)	Nth last column
	E:placeholder-shown	placeholder text
	E:active-drop	will receive the item
	E:valid-drop	could receive the item
	E:invalid-drop	cannot receive the item
Pseudo-elements
CSS2	E:first-letter	First letter	9.0	12	1.0	85	Yes	1.0	5.0	No[m 6]
	E:first-line	First line				Partial			8.1
	E:before	Before	8.0		1.9.1	Partial			Yes	Yes[m 6]
	E:after	After
css3- selectors	E::before	Double colon notation	9.0	12	1.9.1	Partial	3.4	1.0	Yes	Yes[m 6]
	E::after	Double colon notation
	E::first-letter	Double colon notation			1.5	85				No[m 6]
	E::first-line	Double colon notation				Partial			8.1
	E::marker[spec 5]	list marker	No	No	No	No	No	No	Yes	No[m 6]
	E::value	user interface element fragments[spec 6]	No	No	No	No	No	No	No
	E::choices
	E::repeat-item
	E::repeat-index
early draft of css3- selectors	E::selection	Selection	9.0	12	Experimental[g 12]	412	3.4	2.1	No
			Trident	EdgeHTML	Gecko	WebKit	KHTML	Presto	Prince	Martha

General selector notes

1. :read-only and :read-write — Both Presto and KHTML handle the case of the contenteditable attribute incorrectly.
2. ::selection has been removed from the CSS3 specification, but is still supported by many browsers.

Trident selector notes

1. :active — Prior to 8.0, :active is only supported on anchor elements.
2. :hover — Prior to 7.0, :hover is only supported on anchor elements.
3. .one.two — Prior to 7.0, only .two class selector was taken into consideration.
4. * — Prior to 7.0 this was treated as a single or no element.
5. [attr] — Matches every td and th in a table when the attribute is colspan (regardless of whether any actually have a colspan attribute).^{[t 9]} This may not actually be a bug, as ambiguity exists in the specification.^{[t 10]}
6. :first-letter, :first-line — Prior to IE9 in 6.0, combining :first-letter rules with others may be problematic.^{[t 11]} In 8.0, rules with !important are ignored inside :first-line and :first-letter declarations.^{[t 12]}

Gecko selector notes

1. (:):before, (:):after — CSS2.0 behavior : some properties are unimplemented prior to 1.9.1.^{[g 13]}

WebKit selector notes

1. :lang() — Only detected when explicitly present on element being tested, attribute not inherited.
2. (:):first-line — text-transform doesn't apply with this pseudo-element.^{[w 10]}
3. (:):before/after — some styles can't be applied to :before and :after pseudo-elements, such as animations and transitions.^{[w 11]}

Presto selector notes

1. :target — Prior to 2.5, styles aren't applied when navigating using back and forward buttons.

Prince selector notes

1. :matches(a,b) — Prince uses a fixed specificity of the most specific argument (like :not) rather than the specificity of the matching argument (as selectors4 specifies).

Properties

		Trident	EdgeHTML	Gecko	WebKit	KHTML	Presto	Prince	Martha
Cascading and Inheritance
css- cascade-3	all	No	No	27.0[g 14]	No	No	No	No	No[m 7]
Display
CSS2	display	8.0	12	1.9	85	Yes	1.0	Yes	Yes[m 7]
Earlier draft of css- display-3	display-inside	No	No	No	No	No	No	No	No[m 7]
	display-outside
	display-list
css- display-3	box-suppress
Box Model[spec 7]
CSS2	margin	9.0	12	1.0	85	Yes	1.0	Yes	Yes[m 7]
	padding	4.0		1.0	85	Yes		Yes
	width	4.0		1.0	85	Yes		Yes
	height	4.0		1.0	85	Yes		Yes
	float	5.0		1.0	85	Yes		Yes
	clear	5.0		1.0	85	Yes		Yes
	min-width	7.0		1.0	Partial	Yes		5.0
	max-width	7.0		1.0	Partial	Yes		5.0
	min-height	7.0		1.7	Partial	3.3.2		5.0
	max-height	7.0		1.7	Partial	3.3.2		5.0
	visibility	9.0		1.8	Partial	Partial	2.5	Partial
Overflow
CSS2	overflow	9.0	12	1.0	85	3.2	1.0	5.0	Yes[m 7]
css- overflow- 3	overflow-x	9.0	12	1.8	525	3.5.6	2.1	5.0	No[m 7]
	overflow-y
	max-lines	No	No	No	No	No	No	No	No[m 7]
Borders
CSS2	border	4.0	12	1.0	85	Yes	1.0	3.0	Yes[m 7]
	border-color	7.0
	border-style	8.0
	border-width	4.0
	border-top	5.5
	border-right
	border-bottom
	border-left
css3- background	border-radius	9.0[t 1]	12	2.0[g 15]	533[w 12]	Experimental	2.5	6.0	Yes[m 7]
	border-image	11.0		15.0[g 16]	Experimental	No	2.5	No	No[m 7]
	border-image-source			15.0[g 17]	No		No
	border-image-slice
	border-image-width
	border-image-outset
	border-image-repeat
	box-shadow	9.0[t 13]		2.0[g 18] [g 19]	Yes[w 13]	No	2.5	No
	box-decoration-break	No	No	32.0[g 20]	No[w 14]	No	2.7[p 2]	Incorrect
		Trident	EdgeHTML	Gecko	WebKit	KHTML	Presto	Prince	Martha
Line Layout[spec 8]
CSS2	line-height	4.0	12	1.0	85	Yes	1.0	5.0	Yes[m 7]
	vertical-align	8.0		1.0	85	Yes		6.0
Positioning
CSS2	position	7.0	12	1.0	85	Yes	1.0	5.0	Yes[m 7]
	top	8.0		1.0	85	Yes		6.0
	right	8.0		1.0	85	Yes		6.0
	bottom	8.0		1.0	85	Yes		6.0
	left	8.0		1.0	85	Yes		6.0
	z-index	8.0		1.9	85	Yes		6.0
Box Alignment Module
css3-align
	align-content	11.0	12	28.0	Experimental	No	No	No	No[m 7]
	align-items			20.0
	align-self
	justify-content
	justify-items	No		No	No
	justify-self
Generated and Replaced Content[spec 9]
CSS2	quotes	8.0	12	Yes	412[w 15]	3.4	1.0	No	No[m 7]
	content	9.0[t 14]		1.9	Partial	Yes	2.7	Partial	Partial[m 7]
	counter-increment	8.0		1.8	525	3.4	1.0	5.0	Yes[m 7]
	counter-reset	8.0		1.8	525	3.4		5.0
Lists[spec 10]
CSS2	list-style	4.0	12	1.0	85	Yes	1.0	6.0	Yes[m 7]
	list-style-image	4.0		1.0	85	Yes		6.0
	list-style-position	4.0		1.0	85	Yes		6.0
	list-style-type	8.0		1.0	85	3.4		Partial
Colors
CSS2	color	3.0	12	1.0	85	Yes	1.0	5.0	Yes[m 7]
css3-color	opacity	9.0[t 1]	12	1.7	125	4.0	2.0	6.0	No[m 7]
		Trident	EdgeHTML	Gecko	WebKit	KHTML	Presto	Prince	Martha
Backgrounds
CSS2	background	4.0	12	1.0	85	Yes	1.0	6.0	Yes[m 7]
	background-attachment	7.0						5.0
	background-color	4.0						3.1
	background-image	8.0						6.0
	background-position	8.0						3.1
	background-repeat	4.0						3.1
css3- background	background (multiple)	9.0[t 1]	12	1.9.2	312	3.5	2.5	9.0	No[m 7]
	background-clip			2.0[g 21]	Yes[w 16]	Experimental			Yes[m 7]
	background-origin
	background-size				Yes[w 17]
Early draft for css- backgrounds- 4	background-position-x	8.0[t 15]	12	No	Experimental	No	No	No	No[m 7]
	background-position-y
Fonts
CSS2	font	4.0	12	1.0	85	Yes	Incorrect	Yes	Yes[m 7]
	font-family	4.0		1.0	85	Yes	1.0	Yes
	font-size	3.0		1.0	85	Yes		3.1
	font-style	4.0		1.0	85	Yes		Yes
	font-variant	4.0		1.0	125	Yes		Yes
	font-weight	8.0		Partial	Partial	Yes	Incorrect	Yes
css3-fonts	font-size-adjust	10.0[t 16]	12	1.9	No[w 18]	No	No	No	No[m 7]
	font-stretch	9.0[t 1]		9.0[g 22]	No[w 19]	No	No	6.0
	font-feature-settings	10.0[t 17]		34.0[13][g 23]	No[w 20]	No	No	No
	font-kerning	No	No		No	No	No	No
	font-language-override	No			No	No	No	No
	font-synthesis	No			No	No	No	No
	font-variant-alternates	No			No	No	No	No
	font-variant-caps
	font-variant-east-asian
	font-variant-ligatures
	font-variant-numeric
	font-variant-position
	unicode-range	9.0[t 18]	12	38.0[g 24]	No	No	No	Yes	No[m 7]
		Trident	EdgeHTML	Gecko	WebKit	KHTML	Presto	Prince	Martha
Text
CSS2	text-align	4.0	12	1.0	85	Yes	1.0	Yes	Yes[m 7]
	text-decoration	Yes		1.0	85	Yes		3.1	Partial[m 7]
	text-indent	3.0		1.0	85	Yes		Yes	Yes[m 7]
	text-transform	4.0		1.0	85	Yes		6.0
	letter-spacing	4.0		1.0	85	Yes		5.0
	word-spacing	8.0		1.0	85	Yes		5.0	No[m 7]
	white-space	8.0		1.9.1	522	Yes	2.1	6.0	Yes[m 7]
css3-text	word-break	Partial	Partial	15.0[g 25]	No	No	No	10.0	No[m 7]
	line-break	11.0	12	No	No	No	No	No
	hyphens	10.0[t 19]	12	6.0[g 26]	Experimental	No	No	Yes	Yes[m 7]
	word-wrap	5.0	12	1.9.1	85	4.3	2.5	10.0	Yes[m 7]
	overflow-wrap	No	No	No[g 27]	No	No	No	10.0
	text-align-last	Partial	Partial	12.0[g 28]	No[w 21]	No	No	Partial	Experimental[m 7]
	text-justify	5.5	12	No[g 29]	No	No	No	6.0	No[m 7]
	text-emphasis	No	No	No	No	No	No	No
	hanging-punctuation	No	No	No	No[w 22]	No	No	No
Early ideas for css- text-4	hyphenate-character	No	No	No	No	No	No	11	Yes[m 7]
	hyphenate-limit-zone	10.0[t 20]	12					No	No[m 7]
	hyphenate-limit-chars	10.0[t 21]	12
	hyphenate-limit-lines	10.0[t 22]	12
	hyphenate-limit-last	No	No
	text-space-collapse
	text-spacing
	text-wrap
Text Decoration
css-text- decor-3	text-shadow	10.0[t 23]	12	1.9.1	Yes	3.4	2.1	No	No[m 7]
	text-decoration-style	No	No	36.0[g 30][g 31]	No[w 23]	No	No	No
	text-decoration-color	No	No			No	No	No
	text-decoration-line	No	No			No	No	No
	text-decoration-skip	No	No	No		No	No	No
	text-underline-position	11.0	12	No	No	No	No	No
	text-emphasis-style	No	No	No	No	No	No	No
	text-emphasis-color
	text-emphasis
	text-emphasis-position
		Trident	EdgeHTML	Gecko	WebKit	KHTML	Presto	Prince	Martha
Writing Modes
CSS2	direction	5.0	12	1.0	85	Yes	1.0	7.0	Yes[m 7]
	unicode-bidi	5.0		1.0	525	Yes		7.0
css- writing- modes-3	writing-mode	7.0[t 24]	12	No[g 32]	Nightly Build[w 24]	No	No	9.0	No[m 7]
	text-combine-horizontal	11.0[t 25]	12.0	No	No	No	No	No
	text-orientation	No	No	No	No	No	No	No
Tables
CSS2	border-collapse	8.0	12	1.0	125	Yes	1.0	5.1	Yes[m 7]
	border-spacing	8.0		1.0	125	Yes		6.0
	caption-side	8.0		1.4	85	Yes		5.0
	empty-cells	8.0		1.0	125	Yes		5.0
	table-layout	5.0		1.0	85	Yes		6.0
User interface
CSS2	cursor	5.5	12	1.8	125	Yes	Partial	Yes	Yes[m 7]
	outline	8.0		1.8	125	Yes	1.0	No
	outline-color	8.0		1.8	125	Yes		No
	outline-style	8.0		1.8	125	Yes		No
	outline-width	8.0		1.8	125	Yes		No
css3-ui	outline-offset	No	No	1.8	125	3.5	2.1	No	No[m 7]
	box-sizing	8.0	12	29.0[g 33]	Yes[w 25]	3.3.2	1.0	7.0
	resize	No	No	2.0[g 34]	525	No	No	No
	appearance	No	12	Experimental	Experimental	No	No	No
	icon	No	No	No	No	No	No	No
	nav-index	No		No	No	No	2.1	No
	nav-up	No		No	No	No		No
	nav-right	No		No	No	No		No
	nav-down	No		No	No	No		No
	nav-left	No		No	No	No		No
	text-overflow	Partial	Partial	7.0[g 35]	Partial	3.5.6	Experimental (Nightly)[p 3]	9.0
		Trident	EdgeHTML	Gecko	WebKit	KHTML	Presto	Prince	Martha
Paged media
CSS2	page-break-before	4.0	12	Partial	Partial	3.5	1.0	6.0	Yes[m 7]
	page-break-after							6.0
	page-break-inside	8.0		19.0[g 36]	312			6.0
	orphans			No[g 37]				6.0
	widows							6.0
css3-page	page	No	No	No	No	No	No	Yes
	size	No		No[g 38]	No[w 26]	No	1.0	6.0
	image-orientation	No		26.0[g 39]	No	No	No	No	No[m 7]
	object-fit	No		36.0[g 40]	No	No	2.7[p 4]	No
	object-position	No			No	No		No
Speech
css3- speech	cue	No	No	No[g 41]	No	No	1.0	No	No[m 7]
	cue-after
	cue-before
	pause
	pause-after
	pause-before
	speak				Nightly build[w 27]
	voice-family				No
	voice-balance						Experimental
	voice-duration
	voice-pitch
	voice-pitch-range
	voice-rate
	voice-stress
	voice-volume
	interpret-as
	phonemes
	rest						No
	rest-after
	rest-before
	mark
	mark-after
	mark-before
		Trident	EdgeHTML	Gecko	WebKit	KHTML	Presto	Prince	Martha
Media Queries
css3- mediaqueries	width	9.0[t 26]	12	1.9.1	525	4.1	2.0	11	No[m 1]
	height
	device-width
	device-height
	device-aspect-ratio
	color						2.5
	color-index
	monochrome
	resolution				No
	orientation					4.2.1	No
	aspect-ratio						2.1
	grid	11.0		Yes		4.1	2.5
	scan
Ruby characters
css3-ruby	ruby-position	No	No	38.0[g 42]	No	No	No	No	No[m 7]
	ruby-align
	ruby-merge			No
Multi-column Layout
css3- multicol	column-count	10.0[t 27]	12	Experimental[g 43]	Experimental	No	2.8[p 5]	Yes	Yes[m 7]
	column-width
	column-gap
	column-rule
	columns			9.0[g 44]
	break-before			No[g 45]	Experimental[w 28]			6.0
	break-after
	break-inside				No[w 29]
	column-fill			14.0[g 46]	No
	column-span			No[g 47]	Experimental[w 30]			8.0
		Trident	EdgeHTML	Gecko	WebKit	KHTML	Presto	Prince	Martha
Grid layout
css- grid-1	grid	No	No	Experimental[g 48]	Experimental[w 31]	No	No	No	No[m 7]
	grid-template
	grid-template-columns
	grid-template-rows
	grid-template-areas
	grid-auto-columns
	grid-auto-rows
	grid-auto-flow
	grid-auto-position
	grid-columns	10.0[t 28]	12
	grid-columns-start	No	No
	grid-columns-end
	grid-row	10.0[t 29]	12
	grid-row-start	No	No
	grid-row-end
	grid-area
Animation
css3- animations
	animation	10.0[t 30]	12	16.0[g 49]	Experimental	No	2.12	No	No[m 7]
	animation-delay
	animation-direction
	animation-duration
	animation-iteration-count
	animation-name
	animation-play-state
	animation-timing-function
	animation-fill-mode
Transforms
css- transforms- 1
	transform	10.0[t 31]	12	16.0	Experimental	No	2.12	Partial	Yes[m 7]
	transform-origin							Yes
	transform-style						No	No	No[m 7]
	perspective
	perspective-origin
	backface-visibility
Transitions
css3- transitions
	transition-property	10.0[t 32]	12	16.0[g 50]	Experimental	No	Experimental	No	No[m 7]
	transition-duration
	transition-timing-function
	transition-delay
	transition
Flexible Box Layout
css3- flexbox
	flex	11.0	12	22.0[g 51]	9.0[w 32]	No	2.12	No	No[m 7]
	flex-basis						No
	flex-direction						2.12
	flex-flow			28.0			No
	flex-grow			22.0			2.12
	flex-shrink						No
	flex-wrap			28.0			No
	order			22.0			2.12
		Trident	EdgeHTML	Gecko	WebKit	KHTML	Presto	Prince	Martha
Regions
css3- regions
	flow-into	10.0[t 33]	12	No[g 52]	Nightly build	No	No	No	Experimental[m 7]
	flow-from
	region-fragment	No	No						No[m 7]
	break-before	No	No						Yes[m 7]
	break-after
	break-inside
Exclusions
css3- exclusions
	wrap-flow	10.0[t 34]	12	No[g 53]	Nightly build	No	No	No	No[m 7]
	wrap-through
Shapes
css- shapes-1
	shape-margin	No	No	No	Nightly build	No	No	No	No[m 7]
	shape-outside				No
	shape-image-threshold
Masking
CSS2	clip	8.0	12	1.0	85	Yes	1.0	5.0	Yes[m 7]
css- masking-1
	clip-path	No	No	1.9.1	No	No	No	No	No[m 7]
	clip-rule			No
	mask	No	No	Partial	Partial	Partial	Partial	Partial
	mask-box-image	No	No	No	Experimental	No	No	No
	mask-box-image-outset				No
	mask-box-image-repeat
	mask-box-image-slice
	mask-box-image-source
	mask-box-image-width
	mask-clip	No	No	No	Experimental	No	No	No
	mask-image
	mask-origin
	mask-position
	mask-repeat
	mask-size
	mask-type			20.0	No
		Trident	EdgeHTML	Gecko	WebKit	KHTML	Presto	Prince	Martha
Compositing and Blending
compositing- 1
	mix-blend-mode	No	No	32.0	No	No	No	No	No[m 7]
	isolation			36.0
	background-blend-mode			30.0
Filter Effects
filter- effects-1
	filter	No	13	35.0[g 54]	18.0[w 33]	No	No	11	No[m 7]
	flood-color		No	No	No
	flood-opacity
	color-interpolation-filters
	lighting-color
Pointer events
SVG1.1 and earlier draft of css3-ui	pointer-events	11.0	12.0	1.9.2	530	No	2.0	No	No[m 7]
pointer- events	touch-action	11.0	12.0	29.0[g 55]	No	No	No	No
Line Grid
css-line- grid-1
	box-snap	No	No	No	No	No	No	No	No[m 7]
	line-grid
	line-slack
	line-snap
Logical Properties
Early ideas for css- logical- props
	block-size	No	No	41.0[g 56]	No	No	No	No	No[m 7]
	inline-size
	min-block-size
	min-inline-size
	max-block-size
	max-inline-size
	margin-block-start
	margin-block-end
	margin-inline-start
	margin-inline-end
	offset-block-start
	offset-block-end
	offset-inline-start
	offset-inline-end
	padding-block-start
	padding-block-end
	padding-inline-start
	padding-inline-end
	border-block-start-width
	border-block-end-width
	border-inline-start-width
	border-inline-end-width
	border-block-start-style
	border-block-end-style
	border-inline-start-style
	border-inline-end-style
	border-block-start-color
	border-block-end-color
	border-inline-start-color
	border-inline-end-color
	border-block-start
	border-block-end
	border-inline-start
	border-inline-end
	background-image-transform			No
	border-image-transform
		Trident	EdgeHTML	Gecko	WebKit	KHTML	Presto	Prince	Martha
Will Change
css-will- change-1	will-change	No	No	36.0	No	No	No	No	No[m 7]
CSSOM View
cssom- view	scroll-behavior (optional[14])	No	No	36.0	No	No	No	No	No[m 7]
Scroll Snap Points
Early ideas for css- snappoints	scroll-snap-type	10.0	12	39.0[g 57]	No	No	No	No	No[m 7]
	scroll-snap-points-x
	scroll-snap-points-y
	scroll-snap-destination
	scroll-snap-coordinate
		Trident	EdgeHTML	Gecko	WebKit	KHTML	Presto	Prince	Martha

Trident property notes

1. margin — inherit inherits the computation and recomputes it instead of inheriting the computed value.^{[t 35]}
2. display — Prior to 7.0, only none, block, inline, table-header-group, and table-footer-group are fully supported. Prior to 8.0, table are not supported, while inline-block is only supported on elements that are naturally inline.
3. overflow — Prior to 7.0, overflow: visible; is incorrectly supported. In 8.0, scroll makes the element's height equal to its max-height even if the content isn't that tall.^{[t 36]} This has been fixed in IE9.
4. visibility — Prior to 8.0, visibility: collapse; is not supported. In 8.0, inline elements with visibility: visible; inside block elements with visibility: hidden; are not visible.^{[t 37]}
5. content — In 8.0, computed attr() values are not updated when the attribute changes.^{[t 38]}
6. border-color — Prior to 7.0, transparent is not supported.
7. border-style — Prior to 8.0, hidden is not supported.
8. border-style — Prior to 7.0, dotted is rendered as dashed.
9. box-shadow — Trident 9.0 renders box-shadow blur value at about half the declared value. Prior to 9.0, trident supports similar functionality since 5.5 using the proprietary Shadow^{[t 39]} and DropShadow^{[t 40]} filters.
10. position — Prior to 7.0, fixed positioning was not supported. 7.0 and later support it in standards-compliant mode only.
11. z-index — Prior to 8.0, z-index is only partially supported.^{[t 41]} In 8.0, floating point values are accepted in addition to integers.^{[t 42]}
12. list-style-type — Prior to 8.0, armenian, decimal-leading-zero, georgian, lower-greek, lower-latin, upper-latin are not supported.
13. opacity — Prior to 9.0, Trident supported a proprietary alternative.^{[t 43]}
14. background-image — Prior to 8.0, background images are badly positioned in some cases.^{[t 44][t 45]}
15. background-attachment — Prior to 7.0, fixed was allowed on the body element only.
16. background-position — Prior to 8.0, fixed positioning is not supported.
17. font-weight — Prior to 8.0, incorrect rendering when value is 600.^{[t 46]}
18. text-align — In 8.0, text-align isn't inherited by :before and :after pseudo-elements.^{[t 47]}
19. white-space — Prior to 6.0, pre is not supported. Prior to 8.0, white-space is only partially supported; pre-line and pre-wrap are not supported.^{[t 48]}
20. cursor — Does not fail on non-prefixed vendor extensions.
21. flex — Experimental in 10.0^{[t 49]}
22. break-after; break-before; break-inside — Though 10.0 does support break-after, break-before, and break-inside for columns, they do not appear to support the properties "region" and "avoid-region".

Gecko property notes

1. display — Values except inline-block and inline-table supported prior to 1.9.
2. z-index — Negatives values are badly supported prior to 1.9.
3. content — none value is unsupported prior to 1.9. This property also fails on any normal (non-pseudo-) elements, which it must support according to the CSS3 "Generated and Replaced Content Module" spec.
4. background-position — Versions prior to 1.7 implement the CSS2 syntax, not the proposed CSS2.1 expanded syntax.
5. font-size-adjust — Prior to 1.9, supported on Windows only.
6. font-weight — Only Regular and Bold weights get used, even if Light or Heavy/Black faces are installed, unless using DirectWrite in Gecko 2.0 on Windows 7 or Windows Vista.
7. white-space — pre-line is not supported prior to 1.9.1. Prior to 1.9, pre-wrap was only supported experimentally as -moz-pre-wrap.
8. visibility — collapse is unsupported prior to 1.8.
9. border-radius — Prior to 1.9.1, border curves are circular, not elliptical as specified by the current CSS3 draft. Short-cut definitions for border-radius read "tl tr br bl" instead of the W3C's "tr br bl tl". When the border style is dotted or dashed, curves are rendered as solid instead.^{[g 58]}
10. page-break-before; page-break-after — Only the always and auto values are supported.

WebKit property notes

1. max-width; max-height; min-width; min-height — Are not supported on tables.(as commented on 2012-12-18, it is fixed)^{[w 34]}
2. font — The system font keywords that allow designers to tailor presentation to the user's operating system environment are unsupported.
3. font-weight — Only Regular and Bold weights get used, even if Light or Heavy/Black faces are installed.
4. page-break-before; page-break-after — Only the always and auto values are supported.
5. white-space — Prior to 522, pre-line and pre-wrap are unsupported.
6. visibility — collapse is unsupported prior to 522. Its implementation has the same effect as hidden and is therefore not compliant.^{[w 35]}
7. content — The none, open-quote, close-quote, no-open-quote, no-close-quote and normal values are unsupported. This property also fails on any normal (non-pseudo-) elements, which it must support according to the CSS3 "Generated and Replaced Content Module" spec.
8. font-size — The font-size property does not always accept the value 0, in "font-size: 0px" the text is still visible.

KHTML property notes

1. overflow — Values scroll and auto are unsupported.
2. page-break-before; page-break-after — Before 3.5 only the always and auto values were supported.
3. visibility — All properties are supported, but the implementation of collapse has the same effect as hidden and is therefore not compliant.

Presto property notes

1. counter-increment, counter-reset — Implemented the algorithm in REC CSS2.
2. background-position — Presto versions prior to Opera 8.0 implement the CSS2 syntax, not the proposed CSS2.1 expanded syntax.
3. font-weight — Incorrect rendering when value is 600. Renders the text in a compatibility mode for websites made for Trident.
4. visibility — Prior to 2.5, the value collapse was unsupported in table columns. On rows, it had the same effect as hidden and was therefore not compliant.
5. cursor — cursor is ignored with dynamic pseudo-classes and custom cursors are unsupported.
6. content — Prior to 2.7, the none value was unsupported.^{[p 6]}
7. font — inherit should not be allowed together with a font-size value. This should not be parsed, but it's currently done in Opera.

Prince property notes

1. visibility — The value collapse is unsupported.^{[px 1]}
2. box-decoration-break — Prince 9 (2013) honoured box-decoration-break for borders but not backgrounds. Nightly builds honour also for backgrounds, but where slice is only approximated: if background-repeat repeats vertically then the rendering is as for clone; otherwise the background renders only in the first fragment, being truncated rather than slicing & continuing in subsequent fragments. The initial value is clone rather than slice, in the belief^{[px 2]} that this is a better default for print use.
3. list-style — The values armenian and georgian are unsupported.^{[px 1]}
4. content — The values open-quote and close-quote are unsupported.^{[px 1]}
5. text-overflow — Partial: excluding the portions of the spec currently marked as At Risk, namely <string> and 2-value syntax.
6. Media Queries — Some device-characteristic media queries aren't very meaningful for PDF user agents.
7. Excludes 3D transforms.

Descriptors

		Trident	EdgeHTML	Gecko	WebKit	KHTML	Presto	Prince	Martha
@counter-style
css- counter- styles- 3	additive-symbols	No	No	No[g 59]	No	No	No	No	No[m 1]
	fallback
	negative
	pad
	prefix
	range
	speak-as
	suffix
	symbols
	system
@font-face
css- fonts- 3	font-family	Yes	12	Yes	Yes	Yes	Yes	Yes	Yes[m 4]
	font-feature-settings								No[m 4] (?)
	font-stretch				No	No	No
	font-style				Yes	Yes	Yes
	font-variant
	font-weight			Partial	Partial		Incorrect
	src			Yes	Yes		Yes		Yes[m 4]
	unicode-range			36.0[g 60]	No	No	No		No[m 4] (?)
@viewport
css- device- adapt	height	10.0[t 50]	12	No	No	No	2.7	No	No[m 1]
	max-height	No	No				No
	min-height
	width	10.0[t 51]	12				2.7
	max-width	No	No				No
	min-width
	zoom						2.7
	max-zoom
	min-zoom
	user-zoom
	orientation						No

Values and units

			Trident	EdgeHTML	Gecko	WebKit	KHTML	Presto	Prince	Martha
Numbers[spec 11]
CSS2	<number>	A floating-point number	3.0	12	1.0	85	Yes	1.0	6.0
	<length>	<number> followed by units
	<percentage>	<number> followed by %
	<integer>	An integer
css3- values	<angle>	<number> angle-unit	9.0[t 1]	12	Yes	Partial	Partial	Partial	Partial
	<time>	<number> time-unit			2.0[g 50]	Yes	Yes	2.5	N/A
	<frequency>	<number> frequency-unit	No	No	No			No
	<fraction>	Remaining space				No	No		No
Strings
CSS2	<string>	String	3.0	12	1.0	85	Yes	1.0	Yes
	\code	Unicode escapes	6.0
Functions
CSS2	rect()	A rectangle	8.0	12	1.0	85	Yes	1.0	Yes
	url()	Uniform Resource Identifier	3.0	12	1.0	85	Yes	1.0	Yes
	counter()		8.0
	attr()	Attribute identifier
css3- values	calc()		9.0[t 1]	12	16.0[g 61]	Yes[w 36]	No	No	No
	toggle()	Toggling between values	No	No	No[g 62]	No	No	No	No
css- grid-1 ?	repeat()	Repeat n times	No	No	32.0[g 63]	No	No	No	No
Colors
CSS2	HTML4 color keywords	16 predefined web colors	3.0	12	1.0	85	Yes	1.0	Yes
	#rrggbb or #rgb	Hexadecimal notation
	rgb(r, g, b)	RGB notation	4.0
	system colors[spec 12]	28 predefined system colors	3.0
css3- color	SVG color keywords		8.0	12	Yes	Yes	Yes	Yes	Yes
	currentColor	The value of the color property.	9.0[t 1]		1.8	528	Yes	2.1	Yes
	rgba(r, g, b, a)	RGBA notation			1.9	525	4.0	2.2	6.0
	hsl(h, s, l)	HSL notation			1.5		3.5.5	2.1	No
	hsla(h, s, l, a)	HSLA notation			1.9		3.5.5	2.2
	transparent	Full transparency	9.0		1.9		4.0	Partial	Partial
Image values
CSS2	<url>	Image types	3.0	12	1.0	85	Yes	1.0	Yes
css3- images	<sprite>		No	No	No	No	No	No	No
	<image-list>				No	No		No
	<linear-gradient>		10.0[t 52]	12	16.0	Yes		Experimental	9
	<radial-gradient>
	linear-gradient()	Color gradients
	radial-gradient()
	repeating-linear-gradient()
	repeating-radial-gradient()
css4- images	conic-gradient()		No	No	No	No	No	No	No
	repeating-conic-gradient()
	element()	Reproduce element	No	No	Experimental	No	No	No	No
	cross-fade()	Transitioning between images	No	No	No[g 64]	No	No	No	No
	image-set()	Resolution negotiation	No	No	No	No	No	No	No
Counter Styles[spec 13]
css- counter- styles-3	symbols()	Anonymous Counter Styles	No	No	No	No	No	No	No
Keywords
CSS2	auto	Automatically calculated	6.0	12	1.0	85	Yes	1.0	Yes
	inherit	Inherited from the parent	8.0
css3- values	initial		No	13	19.0	125	No	No	No
Units
CSS2	px	Pixel	3.0	12	1.0	85	Yes	1.0	Yes
	pt	Point
	pc	Pica
	cm	Centimetre
	mm	Millimetre
	in	inch
	em	em
	ex	ex
	%	Percentage
css3- values	deg	Degree	9.0[t 1]	12	1.9.1	Yes	Yes	2.5	Yes
	grad	Grad							No
	rad	Radian							Yes
	turn	turn			13.0[g 65]	No	No	No	No
	ms	Millisecond			2.0[g 66]	Yes	Yes	2.5	N/A
	s	Second
	Hz	Hertz	No	No	No			No
	kHz	Kilohertz
	dpi	Dots per inch		12	1.9.1	No	4.1	2.5	11
	dpcm	Dots per centimetre
	dppx	Dots per pixel-unit			16.0	No	?	No
earlier draft of css-line- grid	gd	Cells in the layout-grid		No	No	No	No	No	No
unit being considered for css- template- 3	fr	Remaining space in a series of length values		12	No	No	No	No	No
css3- values	rem	the font size of the root element	9.0[t 1]		1.9.2	Yes	No	2.10.229[p 7]	11
	vw	the viewport's width			19.0[g 3]	28.0[w 37]	No	No	No
	vh	the viewport's height
	vmin	equal to the smaller of ‘vw’ or ‘vh’.	No
	vmax	equal to the larger of ‘vw’ or ‘vh’.
	ch	the width of the "0" (ZERO, U+0030) glyph found in the font for the font size used to render.	No		1.9.1	No	No	No
Filter Effects
filter- effects
	grayscale()		No	13	35.0[g 67]	18.0[w 38]	No	No	11
	sepia()
	saturate()
	hue-rotate()
	invert()
	opacity()
	brightness()
	contrast()
	blur()
	drop-shadow()
	Variables
css- variables- 1
	--*	define variable	No	No	31.0[g 68]	Experimental	No	No	No
	var(--*)	use variable
			Trident	EdgeHTML	Gecko	WebKit	KHTML	Presto	Prince	Martha

General value and unit notes

1. transparent —

   CSS1 introduced the ‘transparent’ value for the background-color property. CSS2 allowed border-color to also accept the ‘transparent’ value. The Open eBook(tm) Publication Structure 1.0.1 [OEB101] extended the ‘color’ property to also accept the ‘transparent’ keyword. CSS3 extends the color value to include the ‘transparent’ keyword to allow its use with all properties that accept a <color> value. This simplifies the definition of those properties in CSS3.

2. <angle> — The turn unit is unsupported.

Trident value and unit notes

1. rect() — Prior to 8.0, rect() was not supported with the correct syntax using commas.
2. auto — In quirks mode (IE5 emulation mode), auto does not work for margins, except table elements.
3. transparent — In 7.0 and 8.0, using transparent in the color property will render the text as black.
4. transparent — Prior to 7.0, transparent is not supported on borders (shows as solid black) and is ignored on PNG images.

Gecko value and unit notes

1. <ch> — Prior to version 1.9.1, used the width of the "M" glyph instead of the width of the "0" glyph.^{[g 69]}

Presto value and unit notes

1. <number> — Prior to 2.1, there existed a quantization error for values greater than 20.47 (not limited to em, try any non-pixel units).^{[p 8]}
2. transparent — Keyword is ignored when used with the outline-color property. Prior to version 2.2, it was also ignored when used with the color and text-shadow properties.

General notes

Trident general notes

1. -ms- — All experimental properties are prefixed with "-ms-", e.g. -ms-interpolation-mode instead of interpolation-mode.

Gecko general notes

1. -moz- — All experimental selectors, properties and values are prefixed with "-moz-", e.g. ::-moz-selection instead of ::selection.

WebKit general notes

1. -webkit- — All experimental selectors, properties and values are prefixed with "-webkit-", e.g. -webkit-box-shadow instead of box-shadow.

KHTML general notes

1. -khtml- — All experimental selectors, properties and values are prefixed with "-khtml-", e.g. -khtml-opacity instead of opacity.

Presto general notes

1. -xv- — All new selectors, properties and values introduced by CSS3 Speech Module are prefixed with "-xv-" (but not found in CSS2 aural style sheets), e.g. -xv-voice-rate instead of voice-rate.
2. -o- — All experimental properties are prefixed with "-o-", e.g. -o-transition-property instead of transition-property.

DOM equivalents to vendor-specific styles

1. The DOM properties corresponding to vendor-specific experimental CSS properties are prefixed with the vendor-prefix, without any hyphens, and with first letters capitalised, e.g. element.style.MozBorderRadius corresponding to the -moz-border-radius property, or element.style.OTransform corresponding to the -o-transform property. The exception is Internet Explorer which uses a lower-case prefix, e.g. element.style.msTransform.

References

Specifications

Trident references

Gecko references

Webkit references

Presto references

Prince XML references

Martha references

Other references

External links

• WebDevout — mostly covers Windows browsers. Extensive bug testing.
• Can I use — comparison tables for HTML5 and CSS3
• QuirksMode — comprehensive and current as of April 2012.
• The CSS3 Test — checks which CSS3 features the browser recognizes (not necessarily supports)