.container-md {
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.nav-link {
    text-transform: capitalize;
    font-weight: 500;
    font-size: 1.2rem;
}

/* diseño  responsivo */
@media only screen and (max-width: 768px) {
    .iconos-nav{
        width: 100%;
        display: flex;
        justify-content: space-between;
    }

    .nav-link {
        font-size: 1rem;
        text-transform: uppercase;
    }
}