.nav {
    display: flex;
    justify-content: flex-end;
    padding: 20px;
}

.nav-item {
    color: #fff;
    margin-left: 20px;
    font-size: 14px;
    text-transform: uppercase;
    text-decoration: none;
}

@keyframes bob {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

.nav-item.animate {
    animation: bob 2s ease-in-out infinite;
}