@mixin scrollBarStyle() {

    &::-webkit-scrollbar {

        width: 7px;

        height: 7px;

    }

    &::-webkit-scrollbar-thumb {

        border-radius: 10px;

        -webkit-box-shadow: inset 0 0 5px #9b9ba3;

        background: rgba(152, 155, 163, 0.5);

    }

}

 .test {

        overflow: auto;

        @include scrollBarStyle;

    }