.parallax {
    /* turn off parallax scrolling for phones and tablets */
    position: absolute;
    z-index: -1;
    height: 0;
}



/* Turn on parallax scrolling for desktop. Increase the pixels if needed */
@media (min-width: 992px) {
    .parallax {
        background-image: url('/images/frbb-brand-building-duo.jpg');
        height:600px;
        width:100%;
        /* Create the parallax scrolling effect */
        background-attachment: fixed;
        background-position: center;
        background-repeat: no-repeat;
        background-size: cover;
        position: relative;
        /*top: 450px;*/
        margin-top: -165px;
        margin-bottom: -435px;
    }
}