Professional Web Developer, Apprentice Photographer
After working with some HTML5 web forms attributes on a small project I have come to the conclusion that for now it is best to…
<input required="required"> not <input required>Some backstory — A few weeks back I was working on a small non-public web site heavy on forms and thought it would be a good fit as an HTML5 test case. For a variety of technical reasons [input formatting in particular] I didn’t go whole hog into it using all the various input type attributes, but did use the required attribute as a hook for JavaScript based form validation and styling. What I found was that generally there was adequate support for styling and selecting based on this new, and unknown to many browsers, required attribute — Yay! we can use this stuff today! However, there were a few browser CSS selector and jQuery 1.3.2 quirks that lead me to the conclusion that it is safest to use the expanded form of the required attribute and not the minimized or shorter form as HTML5 allows. This gives you the most solid and flexible options when choosing selectors in CSS or jQuery code.