.nav .nav-link.active,
.nav .nav-link:hover {
    color: var(--iir-energy-blue) !important;
    border-bottom: 5px solid var(--iir-energy-blue);
}

.sponsor-img {
    max-width: 10rem;
    margin-top: -2rem;
    filter: drop-shadow(0 0 5px rgba(0, 0, 0, 0.5));
}