This is a demo of a required field that must not leave empty.
Custom Checkbox Validation
A demo of checkboxes that must be selected at least two fom any given list.
Custom Style Invalid Messages
A demo for using custom styled messages for error container.
A demo of select boxes that must be selected at least one fom any given option.
A demo of an email field that is required and must also be a valid email address. It automatically validate an email when the field is in type="email".