.form-control.error, .form-select-validate label.error ~ .select2 .select2-selection--single {
    border-color: #dc3545 !important;
    background-repeat: no-repeat !important;
    background-position: right calc(0.375em + 0.1875rem) center !important;
    background-size: calc(0.75em + 0.375rem) calc(0.75em + 0.375rem) !important;
    outline: none !important;
    box-shadow: unset !important;
}

.error {
    width: 100%;
    margin-top: .25rem;
    color: #dc3545;
}