title: How would I go about solving this problem on freecodecamp.org? - css related
body: <p>The <code>.red-box</code> <em>rule</em> should include a <em>fallback</em> with the <code>background</code> set to <code>red</code> immediately before the existing <code>background</code> <em>declaration</em>.</p>
  
  <p>Here is the pre-generated <em>code</em>:</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>:root {
    --red-color: red;
  }
  
  .red-box {
    background: var(--red-color);
    height: 200px;
    width: 200px;
  }</code></pre>
  <pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;div class="red-box"&gt;&lt;/div&gt;</code></pre>
  </div>
  </div>
  </p>