title: Is the copyright meta tag valid in HTML5?
body: <pre><code>&lt;meta name="copyright" content="By Me" /&gt;
  </code></pre>
  
  <p>W3C validator output: </p>
  
  <blockquote>
    <p>Line 5, Column 41: Bad value copyright for attribute name on element meta: Keyword copyright is not registered.</p>
  </blockquote>
  
  <p>I need to set the copyright. Any idea?</p>