at-rule-property-required-list

Specify a list of required properties for an at-rule.

    @font-face { font-display: swap; font-family: 'foo'; }
/**  ↑           ↑                   ↑
 *  At-rule and required property names */

This rule was previously called, and is aliased as, at-rule-requirelist.

Options

object: { "at-rule-name": ["array", "of", "properties"] }

Given:

{
  "font-face": ["font-display", "font-family", "font-style"]
}

The following patterns are considered violations:

@font-face {
    font-family: 'foo';
    src: url('./fonts/foo.woff2') format('woff2');
}

@font-face {
    font-family: 'foo';
    font-style: normal;
    src: url('./fonts/foo.woff2') format('woff2');
}

The following patterns are not considered violations:

@font-face {
    font-display: swap;
    font-family: 'foo';
    font-style: normal;
    src: url('./fonts/foo.woff2') format('woff2');
}