#section-17{
    margin-top: 20%;
    margin-bottom: 50%;
}

@media (max-width:600px){
    #section-16{
        margin-top:50%;
        margin-bottom: 30%;
    }
    #section-twelve.cambio{
        margin-top: 250%;
    }
    #section-six.cambio{
        padding-top: 95%;
    }

    #section-twelve{
        margin-top:30px;
        margin-bottom: 250px;
    }
}

@media (min-width:600px) and (max-width:768px){
    .img-espacio{
        margin: -40% 0 0;
    }
    #section-16{
        margin-top: 40%;
        z-index: 100;
        position: relative;
    }
    .img-espacio2{
        margin: -30% 0 0;
    }
    #section-twelve .mapa-cambio{
        margin-top: -10%;
        margin-bottom: 10%;
    }
    #section-twelve{
        margin: -22% 7% 65%;
    }
}