How to highlight the form Error messages?

When there is an error,for example invalid email, error message display at the end of the form prevent submission. Is there away to make the the form highlight the field of the error or ideal make instantaneous validation for the fields?

I believe that you are referring to this form: https://www.jotform.me/form/81755902210451 

You can highlight the required fields and email validation with this code: https://www.jotform.com/help/117-How-to-Inject-Custom-CSS-Codes 

.form-line-error {

  background: red !Important;

  display: block !Important;

}

Let us know if you need more help.