.nav-idioma form {
    display: none;
}
.nav-idioma .dropdown-sublist {
    display: block;
    list-style: none;
    padding: 0;
}
.nav-idioma .dropdown-sublist > li a {
    clear: both;
    white-space: nowrap;
    background-color: transparent;
    border: 0;
    display: block;
    width: 100%;
    color: #212529;
    font-weight: 400;
    text-align: inherit;
    text-decoration: none;
    padding: .25rem 1rem;
}

.nav-idioma .dropdown-sublist > li a:active,
.nav-idioma .dropdown-sublist > li a:focus,
.nav-idioma .dropdown-sublist > li a:hover {
    background-color: #0b5ed7;
    color: #fff;
}