title: How to make an external custom css (style.css) work with react component?
body: <p><br/>
  I have a project going on, in several components, I need to put styles.
  Bootstrap is working fine. But when I added <code>style.css</code> it does not seems to catch up.</p>
  
  <p>I have checked the page source and the <code>style.css</code> file is linked properly to my <code>index.html</code> file.</p>
  
  <p><strong>my file structure:</strong><br/>
  <a href="https://i.stack.imgur.com/0w80t.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/0w80t.png" alt="enter image description here"></a></p>
  
  <p>This is the head tag of my <code>index.html</code></p>
  
  <pre><code>  &lt;head&gt;
      &lt;meta charset="utf-8"&gt;
      &lt;meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no"&gt;
      &lt;meta name="theme-color" content="#000000"&gt;
  
      &lt;link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous"&gt;
      &lt;link rel="stylesheet" href="%PUBLIC_URL%/style.css"&gt;
      &lt;link rel="manifest" href="%PUBLIC_URL%/manifest.json"&gt;
      &lt;link rel="shortcut icon" href="%PUBLIC_URL%/favicon.ico"&gt;
  
      &lt;title&gt;News Scroller&lt;/title&gt;
    &lt;/head&gt;
  </code></pre>