The CSS.supports()
method returns a boolean value indicating if the browser supports a given CSS feature, or not.
CSS.supports()
Syntax
supports(propertyName, value) supports(supportCondition)
Parameters
There are two distinct sets of parameters. The first one allows to test the support of a pair property-value:
-
propertyName
-
A string containing the name of the CSS property to check.
-
value
-
A string containing the value of the CSS property to check.
The second syntax takes one parameter matching the condition of @supports
:
-
supportCondition
-
A string containing the condition to check.
Return value
true
if the browser supports the rule, otherwise false
.
Examples
result = CSS.supports("text-decoration-style", "blink"); result = CSS.supports("display: flex"); result = CSS.supports("(--foo: red)"); result = CSS.supports(`(transform-style: preserve) or (-moz-transform-style: preserve) or (-o-transform-style: preserve) or (-webkit-transform-style: preserve)`); // result is true or false
Specifications
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 | |
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.
|
See also
- The
@supports
at-rule that allows for the same functionality but in a declarative way. - The
CSSSupportsRule
CSSOM class allowing to manipulate@supports
at-rules.
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https://developer.mozilla.org/en-US/docs/Web/API/CSS/supports