.masthead {
    background-attachment: scroll;
}

@media (min-width: 992px) {
    .masthead {
        background-attachment: fixed;
    }
}

#locale {
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

@media (max-width: 991px) {
    #locale {
        background-attachment: scroll;
    }
}