swc/crates/swc_css_codegen/tests/fixture/at-rules/font-feature-values/input.css

@font-feature-values "Otaru Kisa" {
    @annotation { circled: 1; black-boxed: 3; }
}

@font-feature-values Otaru {
    @annotation { circled: 1; black-boxed: 3; }
}

@font-feature-values Otaru Kisa {
    @annotation { circled: 1; black-boxed: 3; }
}

@font-feature-values Taisho Gothic {
    @annotation { boxed: 1; circled: 4; }
}

@font-feature-values Taisho Gothic, Bar {
    @annotation { boxed: 1; circled: 4; }
}

h3.title {
    /* circled form defined for both fonts */
    font-family: Otaru Kisa, Taisho Gothic;
    font-variant: annotation(circled);
}