title: dragover vs dragenter events of HTML5 drag & drop
body: <p>I want to know the difference of <code>dragover</code> and <code>dragenter</code> events of HTML5 <a href="https://developer.mozilla.org/en-US/docs/Web/API/HTML_Drag_and_Drop_API" rel="noreferrer">drag &amp;drop</a>. </p>
  
  <p>I'm not clear about the difference.</p>