Skip to main content

declaration-property-value-keyword-no-deprecated

Disallow deprecated keywords for properties within declarations.

  a { color: ThreeDDarkShadow; }
/**     ↑         ↑
 * property and value pairs like these */

This rule flags keywords that were removed or deprecated after being in the CSS specifications, including editor drafts, and were subsequently either:

  • shipped in a stable version of a browser
  • shipped by a developer channel/edition browser
  • shipped but behind experimental flags
  • polyfilled with some adoption before any browser actually shipped
  • had an MDN page at one point in time

The fix option can automatically fix some of the problems reported by this rule.

Prior art:

Options​

true​

The following patterns are considered problems:

a { overflow: overlay; }
a { text-justify: distribute; }

The following patterns are not considered problems:

a { overflow: auto; }
a { text-justify: inter-character; }

Optional secondary options​

ignoreKeywords: ["/regex/", /regex/, "string"]​

Given:

["ActiveBorder", "/caption/i"]

The following patterns are not considered problems:

a {
  color: ActiveBorder;
}
a {
  color: InactiveCaptionText;
}