$z-index:(
    "z-index": (
        type: 2,
        status: $z-index-status,
        responsive: $z-index-responsive,
        property: (
            name: z-index,
            class: null
        ),
        sub-property: (
            list:(
                z: z-index
            ),
            values: (
                percent:(
                    status: true,
                    class: null,
                    extension: null,
                    start: 0,
                    end: 10,
                    rate: 10
                )
            )
        )
    )
);