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

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

1,239 views • Live Report

A quick tip showcasing why you should use :

Learn CSS pseudo-classes in 7 minutes! ☟

Learn CSS pseudo-classes in 7 minutes! ☟

76,198 views • Live Report

css

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 by default. Obviously, if user input satisfies the constraints of the field, it exists in a valid ...

The new CSS pseudo-classes explained - :is() :where() :has()

The new CSS pseudo-classes explained - :is() :where() :has()

158,447 views • Live Report

Every time I mention :is() and :where() people tell me they've never seen them before, and with browser support being pretty good ...

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Optional fields with empty values are valid by default. Obviously, if user input satisfies the constraints of the field, it exists in a valid ... 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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