title: Which HTML elements can receive focus?
body: <p>I'm looking for a definitive list of HTML elements which are allowed to take focus, i.e. which elements will be put into focus when <code>focus()</code> is called on them?</p>
  
  <p>I'm writing a jQuery extension which works on elements that can be brought into focus. I hope the answer to this question will allow me to be specific about the elements I target.</p>