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CSS initial value

A CSS initial value is a value of an author defined property that applies the default value defined in the specification.

Last updated on : 2023-03-20

Browser Versions

Edge

Firefox

Chrome

Safari

Opera

5.5 - 11

12 - 111

2 - 3

3.6 - 113

4 - 114

3.2 - 16.4

9.5 - 12.1

15 - 95

Fully Supported

Partially

No Support

Specifications

CSS Cascading and Inheritance Level 3 # initial

Browser Compatibility

CSS initial value on IE is not supported on any IE versions.

CSS initial value on Edge is fully supported on all Edge versions.

CSS initial value on Firefox is fully supported on 3.6-113 and partially supported on 2-3 Firefox versions.

CSS initial value on Chrome is fully supported on all Chrome versions.

CSS initial value on Safari is fully supported on all Safari versions.

CSS initial value on Opera is fully supported on 15-95, and not supported on 9.5-12.1 Opera versions.

CSS initial value on Safari on iOS is fully supported on all Safari on iOS versions.

CSS initial value on Android Browser is fully supported on all Android Browser versions.

CSS initial value on Opera Mobile is fully supported on 64-73, and not supported on 10-12 Opera Mobile versions.

CSS initial value on Chrome for Android is fully supported on all Chrome for Android versions.

CSS initial value on Firefox for Android is fully supported on all Firefox for Android versions.

CSS initial value on Samsung Internet is fully supported on all Samsung Internet versions.

Browser Support for CSS initial value

CSS initial value on Chrome

CSS initial value on Safari

CSS initial value on Firefox

CSS initial value on Internet Explorer

CSS initial value on Opera

CSS initial value on Edge

References

Data sourced from

High

Overall Browser Compatibility Score

Note:CSS initial value shows a browser compatibility score of 92. This is a collective score out of 100 to represent browser support of a web technology. The higher this score is, the greater is the browser compatibility. The browser compatibility score is not a 100% reflection for every browser and the web technology support. However, it does give you an estimate on how much you should rely on a particular web technology in terms of browser compatibility.

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