.bd-placeholder-img {
    font-size: 1.125rem;
    text-anchor: middle;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

.bg_ini {
    background: url(../img/portada.png);
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center center;
    background-attachment: fixed;
    -webkit-background-size: cover;
    -moz-background-size: cover;
    -o-background-size: cover;
}

@media (min-width: 768px) {
    .bd-placeholder-img-lg {
        font-size: 3.5rem;
    }

        .presentacion {
            padding-top: 6rem;
            padding-bottom: 6rem;
        }
        .logo-demo{
            margin-top: 30px;
            height: 80px;
        }
    
    .bg_ini {
        background: url(../img/portada.png);
        background-repeat: no-repeat;
        background-size: cover;
        background-position: center center;
        background-attachment: fixed;
        -webkit-background-size: cover;
        -moz-background-size: cover;
        -o-background-size: cover;
    }
}



.presentacion {
    padding-top: 3rem;
    padding-bottom: 3rem;
    margin-bottom: 0;
    background-color: transparent !important;

}
.logo-demo{
    margin-top: 20px;
    height: 120px;
}


.presentacion p:last-child {
    margin-bottom: 0;
}

.presentacion h1 {
    font-weight: 300;
}

.presentacion .container {
    max-width: 40rem;
}

footer {
    padding-top: 1rem;
    padding-bottom: 1rem;
}

footer p {
    margin-bottom: .25rem;
}