html {
    background-image: url('../../images/contacto/fondo.jpg');
}
#legal {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    background-color: rgba(255,255,255,0.75);
}

ul {
    list-style: none;
}

@media all and (min-width: 640px) {
    #legal {
        margin-top: 100px;
        padding: 40px 80px;
    }
}
@media all and (max-width: 639px) {
    #legal {
        padding: 20px;
    }
}