body {
    /*height: 1000px;*/
    background-image: url("../Multimedia/Portada-web.png");
    /*background-position: inherit;*/
    background-attachment: fixed;
    /*background-position-y: -45%;*/
    background-repeat: no-repeat;
    background-size: cover;   
}

/* Ahora podemos cambiar solo la propiedad background-image */
/*@media (min-width: 480px) {
    body {*/
        /*background-image: url("background-480w.png");*/
        /*background-position-y: -20%;
    }
}

@media (min-width: 768px) {
    body {*/
        /*background-image: url("background-768w.png");*/
        /*background-position-y: -10%;
    }
}

@media (min-width: 1200px) {
    body {*/
        /*background-image: url("background-1200w.png");*/
        /*background-position-y: 0%;
    }
}*/

a {
    color: #2F3E55;
}