HTML5 form features

Support for the following HTML5 input element and form related functionalities

• the new input element types specified in HTML5 draft specification, including those covered in QTWEBKIT-165 and QTBUG-29615, and those not covered (e.g range, color, and search). Currently, we use these input types in selecting virtual keyboards
• validating the input of these new input element types without JavaScript (e.g. validating that the user has entered a valid email address in an email type input element). Support for the :invalid pseudo-class in CSS to style invalid input elements and providing validation messages to the user when the user tries to submit a form with invalid input elements
• placeholder attribute
• autofocus attribute

This article provides a nice summary of these features: http://articles.sitepoint.com/article/html5-forms