x <length>#');

// CSSStyleValues which aren't CSSUnparsedValues aren't accepted by set(),
// even if they're a value which is compatible with the syntax.
//
// https://drafts.css-houdini.org/css-properties-values-api-1/#cssom
const zero_matrix = CSSStyleValue.parse('transform', 'matrix(0, 0, 0, 0, 0, 0)');
const image_value = CSSStyleValue.parse('background-image', 'url(a)');

test_specified_maps(function(map){
    verify_map_not_set(map, generate_property('*'), new CSSKeywordValue('foo'));
}, 'CSSKeywordV