jQuery Validation - How to display the default callout on errors?

Question

If I create an input control like this:

And type letters in it, an error will be displayed in a popup-like co

Answer 1

This is what you are talking is HTML5 feature use required attribute with your form element

and it will show you default error message but if you want to show custom error message than use title attribute

Check this URL for more information http://demosthenes.info/blog/848/Create-Custom-HTML5-Form-Error-Messages-with-the-Title-Attribute

Hope it will answer your question