.icono-moon{
    width: $22;
    height: $22;
    border-radius: 50%;
    overflow: hidden;
    margin: $6;
    &:before{
        position: absolute;
        width: $20;
        height: $20;
        top: (- $2);
        left: $6;
        border-radius: 50%;
        box-shadow: 0 0 0 $32;

}

}