#parallax {
    background-attachment: fixed !important;
    background-position: top !important;
    background-repeat: no-repeat !important;
    background-size: cover !important;
    min-height: 70vh;
    display: flex;
    align-items: center;
}

#parallax .marco-parallax {
    top: auto;
    bottom: 0;
    left: 0;
    right: 0;
    width: 100%;
}

#parallax .contenido {
    position: relative;
    z-index: 3;
    height: 100%;
    display: flex;
    align-items: center;
}