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Stop Using :invalid and :valid Pseudo-Classes. Use THIS Instead!

Stop Using :invalid and :valid Pseudo-Classes. Use THIS Instead!

1,252 views • Live Report

A quick tip showcasing why you should use :

CSS Style form elements ( valid and invalid pseudo classes )

CSS Style form elements ( valid and invalid pseudo classes )

392 views • Live Report

Optional fields with empty values are

Valid and Invalid Pseudo Classes

Valid and Invalid Pseudo Classes

181 views • Live Report

Using the

Learn CSS pseudo-classes in 7 minutes! ☟

Learn CSS pseudo-classes in 7 minutes! ☟

76,238 views • Live Report

css CSS

Introduction to Valid And Invalid Pseudo Classes

Every time I mention :is() and :where() people tell me they've never seen them before, and with browser support being pretty good ... I've had a lot of people ask me the difference between

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Last Updated: June 7, 2026

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