.ns-hp {
    position: absolute !important;
    left: -10000px !important;
    width: 1px !important;
    height: 1px !important;
    overflow: hidden !important;
}
#ns-form .form-control:focus,
#ns-form .form-check-input:focus {
    box-shadow: 0 0 0 .2rem rgba(13,110,253,.15);
}

#ns-form .form-control.is-invalid,
#ns-form.was-validated .form-control:invalid {
    border-color: #dc3545;
}

#ns-form .form-control.is-valid,
#ns-form.was-validated .form-control:valid {
    border-color: #28a745;
}

#ns-form .form-check-input.is-invalid,
#ns-form.was-validated .form-check-input:invalid {
    border-color: #dc3545;
}