Case-insensitive CSS attribute selectors

Case-insensitive CSS attribute selectors

Including an i before the ] in a CSS attribute selector causes the attribute value to be matched in an ASCII-case-insensitive manner. For example, [b="xyz" i] would match both <a b="xyz"> and <a b="XYZ">.

Spec https://drafts.csswg.org/selectors-4/#attribute-case
Status Unofficial / Note
IE Edge Firefox Chrome Safari Opera