🏠 New in High Baseline Support: :user-valid and :user-invalid

May 2, 2026

caniuse · mdn · spec

The :user-valid and :user-invalid pseudo-classes match form controls that have been marked as valid or invalid based on their validation constraints.

Source features

• css.selectors.user-invalid [mdn]
• css.selectors.user-valid [mdn]