title: Should I add a slash to self-closing HTML tags like `img` and `br`?
body: <p>What is the main difference between:</p>
  <pre class="lang-html prettyprint-override"><code>&lt;meta charset=&quot;UTF-8&quot; /&gt;
  </code></pre>
  <p>and</p>
  <pre class="lang-html prettyprint-override"><code>&lt;meta charset=&quot;UTF-8&quot;&gt;
  </code></pre>
  <p>I understand that this is related to the fact that the tags that are getting <code>/&gt;</code> instead of <code>&gt;</code> don't have closing tags, but what is the benefit of using <code>/&gt;</code> on HTML, PHP and ASP documents?</p>