Is it possible to add a className prop to the Form.Item validation?
<Form.Item name="username" rules={[
{ required: true, message: '...' },
className="customValidation" //<- something like that, but it is not working
]}>
Edit: Overriding the ant styles is not a valid solution!
I created a Issue on GitHub and and they answered with
Form.Item supports className on it now.