For custom Bootstrap form validation messages, you’ll need to add the novalidate
boolean attribute to your form. For server side validation read full documentation.
Not interested in custom validation feedback messages or writing JavaScript to change form behaviors? All good, you can use the browser defaults. Try submitting the form below.
Form validation styles are also available for bootstrap custom form controls.
Swap the .{valid|invalid}-feedback
classes for .{valid|invalid}-tooltip
classes to display validation feedback in a styled tooltip.