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Case-insensitive CSS attribute selectors

Last updated on : 2023-03-20

Note:

Case-insensitive CSS attribute selectors 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.

Overview

In CSS, using an i after the]' allows for case-insensitive matching. For example, [b='xyz'] will match both and .

Specifications

Selectors Level 4 # attribute-selectors

Code snippets

case-insensitive-flag.html

Source:case-insensitive-flag.html

issue-291.css

Source:issue-291.css

Browser Compatibility

Case-insensitive CSS attribute selectors on IE is fully supported on None of the versions, partially supported on None of the versions, and not supported on 5.5-11 IE versions.
Case-insensitive CSS attribute selectors on Edge is fully supported on 79-111, partially supported on None of the versions, and not supported on 12-18 Edge versions.
Case-insensitive CSS attribute selectors on Firefox is fully supported on 47-113, partially supported on None of the versions, and not supported on 2-46 Firefox versions.
Case-insensitive CSS attribute selectors on Chrome is fully supported on 49-114, partially supported on None of the versions, and not supported on 4-48 Chrome versions.
Case-insensitive CSS attribute selectors on Safari is fully supported on 9.1-16.4, partially supported on None of the versions, and not supported on 3.2-8 Safari versions.
Case-insensitive CSS attribute selectors on Opera is fully supported on 36-95, partially supported on None of the versions, and not supported on 9.5-35 Opera versions.
Case-insensitive CSS attribute selectors on Safari on iOS is fully supported on 9.3-16.4, partially supported on None of the versions, and not supported on 3.2-8 Safari on iOS versions.
Case-insensitive CSS attribute selectors on Android Browser is fully supported on 97-111, partially supported on None of the versions, and not supported on 2.1-4 Android Browser versions.
Case-insensitive CSS attribute selectors on Opera Mobile is fully supported on 64-73, partially supported on None of the versions, and not supported on 10-12 Opera Mobile versions.
Case-insensitive CSS attribute selectors on Chrome for Android is fully supported on 97-111, partially supported on None of the versions, and not supported on below 97 Chrome for Android versions.
Case-insensitive CSS attribute selectors on Firefox for Android is fully supported on 95-110, partially supported on None of the versions, and not supported on below 95 Firefox for Android versions.
Case-insensitive CSS attribute selectors on Samsung Internet is fully supported on 5-20, partially supported on None of the versions, and not supported on 4-4 Samsung Internet versions.

High

Browser Compatibility Score

Low

Browser Support For IE Versions

Fully

Partially

5.5-11

No Support

Edge

High

Browser Support For Edge Versions

79-111

Fully

Partially

12-18

No Support

Firefox

High

Browser Support For Firefox Versions

47-113

Fully

Partially

2-46

No Support

Chrome

High

Browser Support For Chrome Versions

49-114

Fully

Partially

4-48

No Support

Safari

High

Browser Support For Safari Versions

9.1-16.4

Fully

Partially

3.2-8

No Support

Opera

High

Browser Support For Opera Versions

36-95

Fully

Partially

9.5-35

No Support

Safari on iOS

High

Browser Support For Safari on iOS Versions

9.3-16.4

Fully

Partially

3.2-8

No Support

Android Browser

High

Browser Support For Android Browser Versions

97-111

Fully

Partially

2.1-4

No Support

Opera Mobile

High

Browser Support For Opera Mobile Versions

64-73

Fully

Partially

10-12

No Support

Chrome for Android

High

Browser Support For Chrome for Android Versions

97-111

Fully

Partially

No Support

Firefox for Android

High

Browser Support For Firefox for Android Versions

95-110

Fully

Partially

No Support

Samsung Internet

High

Browser Support For Samsung Internet Versions

5-20

Fully

Partially

4-4

No Support

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Last Modified date

2023-03-20