/* make the navbar background opaque when scrolled */
/* activated via javascript on page (#28B0EE) */
.navbar-dark.scrolled {
    background-color: #333 !important;
    opacity: .9 !important;
}

/* offset target divs (divs with id's and linked via hashtag) so content is below navbar */
/* change numbers to match the height of your navbar */
div:target {
    padding-top: 65px; 
    margin-top: -65px;
}