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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 */

The message secondary option can accept the arguments of this rule.

Options

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

Given:

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

The following patterns are considered problems:

@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 problems:

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