dom / latest / css.html /

CSS

The CSS interface holds useful CSS-related methods. No objects with this interface are implemented: it contains only static methods and is therefore a utilitarian interface.

Properties

The CSS interface is a utility interface and no object of this type can be created: only static properties are defined on it.

Static properties

CSS.paintWorklet Secure context

Provides access to the Worklet responsible for all the classes related to painting.

Methods

The CSS interface is a utility interface and no object of this type can be created: only static methods are defined on it.

Static methods

No inherited static methods.

CSS.registerProperty()

Registers custom properties, allowing for property type checking, default values, and properties that do or do not inherit their value.

CSS.supports()

Returns a boolean value indicating if the pair property-value, or the condition, given in parameter is supported.

CSS.escape()

Can be used to escape a string mostly for use as part of a CSS selector.

CSS factory functions

Can be used to return a new CSSUnitValue with a value of the parameter number of the units of the name of the factory function method used.

CSS.em(3) // CSSUnitValue {value: 3, unit: "em"}

Specifications

Specification
CSS Object Model (CSSOM)
# namespacedef-css

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
CSS
28
12
22
No
12.1
9
4.4
28
22
12.1
9
1.5
Hz
66
79
No
No
53
No
66
66
No
47
No
9.0
Q
66
79
No
No
53
No
66
66
No
47
No
9.0
ch
66
79
No
No
53
No
66
66
No
47
No
9.0
cm
66
79
No
No
53
No
66
66
No
47
No
9.0
deg
66
79
No
No
53
No
66
66
No
47
No
9.0
dpcm
66
79
No
No
53
No
66
66
No
47
No
9.0
dpi
66
79
No
No
53
No
66
66
No
47
No
9.0
dppx
66
79
No
No
53
No
66
66
No
47
No
9.0
em
66
79
No
No
53
No
66
66
No
47
No
9.0
escape
46
79
31
No
33
10
46
46
31
33
10
5.0
ex
66
79
No
No
53
No
66
66
No
47
No
9.0
fr
66
79
No
No
53
No
66
66
No
47
No
9.0
grad
66
79
No
No
53
No
66
66
No
47
No
9.0
ic
No
See bug 937101.
No
No
No
No
No
See bug 195176.
No
No
See bug 937101.
No
No
No
No
in
66
79
No
No
53
No
66
66
No
47
No
9.0
kHz
66
79
No
No
53
No
66
66
No
47
No
9.0
lh
No
See bug 937104.
No
No
No
No
No
No
No
No
No
No
No
mm
66
79
No
No
53
No
66
66
No
47
No
9.0
ms
66
79
No
No
53
No
66
66
No
47
No
9.0
number
66
79
No
No
53
No
66
66
No
47
No
9.0
paintWorklet
65
79
No
No
52
No
65
65
No
47
No
9.0
pc
66
79
No
No
53
No
66
66
No
47
No
9.0
percent
66
79
No
No
53
No
66
66
No
47
No
9.0
pt
66
79
No
No
53
No
66
66
No
47
No
9.0
px
66
79
No
No
53
No
66
66
No
47
No
9.0
rad
66
79
No
No
53
No
66
66
No
47
No
9.0
registerProperty
78
79
No
No
65
No
78
78
No
56
No
12.0
rem
66
79
No
No
53
No
66
66
No
47
No
9.0
rlh
No
See bug 937104.
No
No
No
No
No
No
No
No
No
No
No
s
66
79
No
No
53
No
66
66
No
47
No
9.0
supports
61
28
Version 60 or older didn't support parentheses-less one-argument version.
12
Edge doesn't support parentheses-less one-argument version.
55
22
Version 54 or older didn't support parentheses-less one-argument version.
No
12.1
9
61
37
Version 60 or older didn't support parentheses-less one-argument version.
61
28
Version 60 or older didn't support parentheses-less one-argument version.
55
22
Version 54 or older didn't support parentheses-less one-argument version.
12.1
9
8.0
1.5
Samsung Internet 8.0 or older didn't support parentheses-less one-argument version.
turn
66
79
No
No
53
No
66
66
No
47
No
9.0
vb
No
See bug 778495.
No
No
No
No
No
See bug 159801.
No
No
No
No
No
No
vh
66
79
No
No
53
No
66
66
No
47
No
9.0
vi
No
See bug 778495.
No
No
No
No
No
See bug 159801.
No
No
No
No
No
No
vmax
66
79
No
No
53
No
66
66
No
47
No
9.0
vmin
66
79
No
No
53
No
66
66
No
47
No
9.0
vw
66
79
No
No
53
No
66
66
No
47
No
9.0

See also

© 2005–2021 MDN contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/CSS

Name Web APIs
Version
Badge
Last Updated 2022-04-27T09:33:08Z