header {
    position: absolute;
    content: "";
    z-index: 99;
    left: 0;
    right: 0;
    top: 0px;
    background-color: transparent;
}

nav {
    border-top: 1px solid rgba(255, 255, 255, 0.5);
    border-bottom: 1px solid rgba(255, 255, 255, 0.5);

}

.navbar-nav .nav-link,
.navbar-brand {
    font-weight: 500;
    font-size: 16px;
    color: white;

}

.navbar-nav .nav-link.active {
    color: greenyellow;
}

/* *** After Scrolling *** */
.scrolling header {
    position: fixed;
    left: 0;
    top: 0;
    width: 100%;
    z-index: 99;
    box-shadow: 0 4px 10px #03041c1a;
    background: #fff;
    animation: 0.5s ease-in-out 0s normal none 1 running fadeInDown;
}

.scrolling header nav {
    border: 0 !important;
}

.scrolling .navbar-nav .nav-link,
.scrolling .navbar-brand {
    color: #1c1c1c;
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}