title: Span inside anchor or anchor inside span or doesn't matter?
body: <p>I want to nest <code>span</code> and <code>a</code> tags. Should I </p>
  
  <ol>
  <li>Put <code>&lt;span&gt;</code> inside <code>&lt;a&gt;</code></li>
  <li>Put <code>&lt;a&gt;</code> inside <code>&lt;span&gt;</code></li>
  <li>It doesn't matter ? </li>
  </ol>