.ng-invalid.ng-touched {
    /*background-color: red;*/
    border: 1px solid #f00;
}
form.ng-submitted  .ng-invalid {
    border: 1px solid #f00;
}

.btn-brand.disabled, .btn-brand:disabled,
.btn-success.disabled, .btn-success:disabled {
    cursor: not-allowed
}
.form-group {
    margin-bottom: 1rem !important;
}