.header-back{
    background-image: url(../img/DSC_9317.jpg);
    background-attachment: fixed;
    background-repeat: no-repeat;
    background-position: center;
}
.call-to-action{
    background-image: url(../img/socialmedia.jpg);
    background-attachment: fixed;
    background-repeat: no-repeat;
    background-position: center;
}
.header-back-container{
    background: rgba(24, 29, 56, .7);
    padding:  50px 10px;
}
@media (max-width: 768px) {

    .header-back-container{
        background: none;
        padding: 0px;
    }
}