#validation CSS effects

4 free, pure-CSS effects match the "validation" tag. Each is copy-ready and needs no library or build step.

A blocking notice that enumerates three unmet conditions as staggered bullet rows.

An inline validation message sits under the field and nudges itself periodically.

A hatched callout balloon hovers over the field and points at it with a small arrow.

The wrapper turns red only after a value is entered and fails, thanks to :has().

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