/* Color of the links BEFORE scroll */
    .navbar-scroll .nav-link, .navbar-scroll .navbar-toggler-icon

{
    color: #fff;
}

/* Color of the links AFTER scroll */
.navbar-scrolled .nav-link,
.navbar-scrolled .navbar-toggler-icon {
    color: #4f4f4f;
}

/* Color of the navbar AFTER scroll */
.navbar-scrolled {
    background-color: #fff;
}

/* An optional height of the navbar AFTER scroll */
.navbar.navbar-scroll.navbar-scrolled {
    padding-top: 5px;
    padding-bottom: 5px;
}