title: HTML Div border not showing
body: <p>I'm trying to add a border to a div element in HTML. Below is my code. </p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-css lang-css prettyprint-override"><code>#container-border {
    border-width: 2px;
    border-color: red;
  }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;div id="container-border"&gt;
    ...
  &lt;/div&gt;</code></pre>
  </div>
  </div>
  </p>
  
  <p>For some reason, the border doesn't show up. I had a look on a similar question (<a href="https://stackoverflow.com/questions/16874084/div-borders-not-showing">here</a>) but I couldn't figure out why the border doesn't show up. Any suggestions please?</p>
  
  <p>Note: This snippet is a part of an HTML page. Additional code could be provided upon request</p>