.select2-container--default .select2-selection--single {
    height: 38px; /* igual que input */
    border: 1px solid #ced4da;
    border-radius: 0.375rem;
    padding: 0.375rem 0.75rem;
    font-size: 1rem;
    line-height: 1.5;
}
.select2-container--default .select2-selection--single .select2-selection__rendered {
    line-height: 1.5;
}
.select2-container--default .select2-selection--single .select2-selection__arrow {
    height: 38px;
    right: 6px;
}
.select2-container--default .select2-search--dropdown .select2-search__field{
    border: 1px solid #ced4da91;
}
.select2-container--default .select2-search--dropdown .select2-search__field:focus {
    border-color: #80bdff;
    outline: 0;
    box-shadow: 0 0 0 0.2rem rgba(0,123,255,.25);
}