         "selector": ":root:nth-last-child(1)",
            "match": []
        },
        {
            "selector": ":root:nth-last-child(n)",
            "match": []
        },
        {
            "selector": ":root:first-of-type",
            "match": []
        },
        {
            "selector": ":root:last-of-type",
            "match": []
        },
        {
            "selector": ":root:only-of-type",
            "match": []
        },
        {
            "selector": ":root:nth-of-type(1)",
 