How to apply Label Border Color in the Nintex form using jQuery

Using a Custom Class on your Nintex form label control

If your label has a custom class, such as CSS class property then apply Label control name is LabelToolTips

Use in the following code on your code logic

NWF$('.LabelToolTips').css('border', '2px solid #ff0000'); // Red border

NWF$('.LabelToolTips').html("*If you are unsure, choose Intranet Issue"); //Apply Value

NWF$('.LabelToolTips').css('border', 'none'); // Remove Border