title: Pop up a form when a button is clicked
body: <p>I want a form to appear in the center of the page when a button is clicked. I found a solution at <a href="http://jqueryui.com/dialog/#modal-form" rel="nofollow noreferrer">http://jqueryui.com/dialog/#modal-form</a>.
  But can it be done in a simpler way without having to include jqueryui?</p>
  
  <p>Also, how i can make the background fields unaccessible? i.e, when the form is open, background fields should be visible but I shouldn't be able to interact with them.</p>