title: What happens if I accidentally duplicate a meta tag in my head?
body: <p>Would there be any duplication errors if I accidentally input more than one meta tag in the head of my code? </p>
  
  <p>For example:</p>
  
  <pre class="lang-html prettyprint-override"><code>&lt;meta name="description" content="this is a description"&gt;
  &lt;meta name="description" content="this is also a description"&gt;
  &lt;meta name="keywords" content="here, are, some, keywords"&gt;
  </code></pre>
  
  <p>What would be the outcome? Would both descriptions be accepted? Would the top overwrite the bottom? Would they both be used as one?</p>