Case-sensitive attribute selectorThe s identifier in a CSS attribute selector matches attribute values case-sensitively in document languages like HTML where attribute values are case-insensitive.selectorsSelectorslimitedhttps://drafts.csswg.org/selectors-4/#attribute-casehttps://developer.mozilla.org/docs/Web/CSS/Reference/Selectors/Attribute_selectorscss.selectors.attribute.case_sensitive_modifierhttps://nowyoucanuse.com/features--case-sensitive-attributes.html