unknown-key

A key no sz table knows, likely a typo.

• The build reports it while it compiles a file, and csszyx check lists it.
• It is printed to the console. A production browser bundle leaves it out.

Message

A name in angle brackets is a value the message fills in.

[csszyx] unknown-key: `<key>` is not an sz property.
  help: <spellingHint>; for a custom utility, define it with Tailwind's `@utility`.
  note: the class is still emitted, and it styles nothing unless Tailwind serves that utility.
  docs: https://csszyx.com/e/unknown-key

These values are worked out from the args:

• <spellingHint>: A suggestion as "write … if you meant it", or "check the spelling" without one.

Level

Default: error under recommended, error under atomic. Set it in csszyx.config: rules: { 'unknown-key': 'warn' }.

The level sets how the build and csszyx check report it. It does not change a console line, and it does not stop a thrown error.

Arguments

The values this diagnostic names.