Limited Availability
Selectors
id: case-sensitive-attributes
Case-sensitive attribute selector
The
s identifier in a CSS attribute selector matches attribute values case-sensitively in document languages like HTML where attribute values are case-insensitive.
Baseline Status:
This feature is currently Limited and is missing in at least one major browser engine.
Desktop Browser Engine Support
Google Chrome
—
Unsupported
Mozilla Firefox
66
Supported
Apple Safari
—
Unsupported
Microsoft Edge
—
Unsupported
Mobile Browser Engine Support
Chrome Android
—
Firefox Android
66
Safari iOS
—
Specifications and References
MDN Browser Compat Data Keys: