title: How do I solve "Greetings, time traveller. We are in the golden age of prefix-less CSS, where Autoprefixer is no longer needed for your stylesheet."?
body: <p>In my Next.JS app I import my stylesheet in <code>_app.js</code> like this:</p>
  <pre><code>import '../public/css/Index.css';
  </code></pre>
  <p><code>Index.css</code> contains this:</p>
  <pre><code>.index-container {
      margin: 20px auto 0;
  }
  </code></pre>
  <p>How do I solve the error message:</p>
  <blockquote>
  <p>./src/public/css/Index.css
  (./node_modules/css-loader/dist/cjs.js??ref--5-oneOf-5-1!./node_modules/next/dist/compiled/postcss-loader??__nextjs_postcss!./src/public/css/Index.css)
  Warning</p>
  <p>Greetings, time traveller. We are in the golden age of prefix-less
  CSS, where Autoprefixer is no longer needed for your stylesheet.</p>
  </blockquote>