property-no-unknown to check for valid values

[jkevingutierrez]

What is the problem you're trying to solve?

It would be great to have the ability to check property values to check if they are valid values.

CSS lint have a similar rule known-properties:

In addition to checking the property name, this rule also checks the property value against the property name to ensure proper values are being supplied. Not all properties are supported yet, but a large number are.

What solution would you like to see?

The validation could be added to the property-no-unknown or it could also be a new rule that could check property values, like property-no-unknown-values

[jeddy3]

@jkevingutierrez Thanks for the request and for using the template.

You can use the stylelint-csstree-validator plugin to do this. CSSTree is doing the heavy-lifting here, like the parser behind CSSLint does in their known-properties rule

[Mouvedia]

#6511