.fondo-parallax{
    background:url(../img/family-home-desktop.jpg);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-attachment: fixed;
    height:400px;
    display: flex;
    align-items: center;
}
.parallax{
    width: 80%;
    margin: auto;
    background: rgba(0, 0, 0, 0.5);
    padding: 10px;
    text-align: center;
    color: white;
}
.parallax h2{
    text-align: center;
    margin-bottom: 10px;
}