.nav-item .nav-link {
    color: #222;
    background: rgba(0,0,0,0.1);
}
.nav-item .nav-link.active {
    background:var(--red) !important;
    color: #fff;
}

.gallery-image {
    text-align: center;
    background:#e5e5e5;
}
.gallery-image img {
    max-height: 250px;
    object-fit: cover;
}