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:indeterminate CSS pseudo-class

The :indeterminate pseudo-class sets a CSS class to elements that have an indeterminate state. It works with checkboxes, bars, and radio buttons with no checked button in their radio button group.

Last updated on : 2026-02-09

Browser Versions

IE

Edge

Firefox

Chrome

Safari

Opera

5.5 - 8

9 - 11

12 - 18

79 - 144

4 - 50

51 - 150

15 - 38

39 - 147

5.1 - 10

10.1 - 26.3

11.6 - 25

26 - 125

Fully Supported

Partially

No Support

Specifications

HTML Standard # selector-indeterminate Selectors Level 4 # indeterminate

Syntax

:indeterminate

Browser Compatibility

:indeterminate CSS pseudo-class on IE is partially supported on 9-11, and not supported on 5.5-8 IE versions.

:indeterminate CSS pseudo-class on Edge is fully supported on 79-144 and partially supported on 12-18 Edge versions.

:indeterminate CSS pseudo-class on Firefox is fully supported on 51-150 and partially supported on 4-50 Firefox versions.

:indeterminate CSS pseudo-class on Chrome is fully supported on 39-147 and partially supported on 15-38 Chrome versions.

:indeterminate CSS pseudo-class on Safari is fully supported on 10.1-26.3 and partially supported on 5.1-10 Safari versions.

:indeterminate CSS pseudo-class on Opera is fully supported on 26-125 and partially supported on 11.6-25 Opera versions.

:indeterminate CSS pseudo-class on Safari on iOS is fully supported on 10.3-26.3 and partially supported on 7-10 Safari on iOS versions.

:indeterminate CSS pseudo-class on Android Browser is fully supported on 97-144 and partially supported on 4.4-4 Android Browser versions.

:indeterminate CSS pseudo-class on Opera Mobile is fully supported on 64-80 and partially supported on 12.1-12.1 Opera Mobile versions.

:indeterminate CSS pseudo-class on Chrome for Android is fully supported on all Chrome for Android versions.

:indeterminate CSS pseudo-class on Firefox for Android is fully supported on all Firefox for Android versions.

:indeterminate CSS pseudo-class on Samsung Internet is fully supported on all Samsung Internet versions.

Browser Support for :indeterminate CSS pseudo-class

:indeterminate CSS pseudo-class on Chrome

:indeterminate CSS pseudo-class on Safari

:indeterminate CSS pseudo-class on Firefox

:indeterminate CSS pseudo-class on Internet Explorer

:indeterminate CSS pseudo-class on Opera

:indeterminate CSS pseudo-class on Edge

References

Data sourced from

100

High

Overall Browser Compatibility Score

Note::indeterminate CSS pseudo-class shows a browser compatibility score of 100. 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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