title: How to add cdn css file to Vue Cli 3 project?
body: <p>I'm trying to include a cdn external css file in my vue-cli-3 project, so I added the css file in the <code>public/index.html</code> file like this:</p>
  
  <pre class="lang-html prettyprint-override"><code>&lt;link rel="stylesheet" href="http://mycssfile.css"&gt;
  </code></pre>
  
  <p>But the css is not included in the generated <code>index.html</code> file. this used to work in vuejs2, I don't understand why it doesn't work with vuejs3. Any idea what the problem is? thanks</p>