The <frequency-percentage> CSS data type represents a value that can be either a <frequency> or a <percentage>.


Refer to the documentation for <frequency> and <percentage> for details of the individual syntaxes allowed by this type.

Use in calc()

Where a <frequency-percentage> is specified as an allowable type, this means that the percentage resolves to a frequency and therefore can be used in a calc() expression.


Specification Status Comment
CSS Values and Units Module Level 4
The definition of '<frequency-percentage>' in that specification.
Editor's Draft
CSS Values and Units Module Level 3
The definition of '<frequency-percentage>' in that specification.
Candidate Recommendation Defines <frequency-percentage>. Adds calc()

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
<frequency-percentage>Chrome No support NoEdge No support NoFirefox No support NoIE No support NoOpera No support NoSafari No support NoWebView Android No support NoChrome Android No support NoFirefox Android No support NoOpera Android No support NoSafari iOS No support NoSamsung Internet Android No support No


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