Learn More About CSS Pseudo Selectors By Building A Balance Sheet - Step 13

Tell us what’s happening:
Describe your issue in detail here.
I cannot figure out what went wrong with my code. I thought I followed through the instruction, but it didn’t work.

  **Your code so far**
/* file: index.html */
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Balance Sheet</title>
  <link rel="stylesheet" href="./styles.css">
</head>
<body>
  <main>
    <section>
      <h1>
        <span class="flex">
          <span>AcmeWidgetCorp</span>
          <span>Balance Sheet</span>
        </span>
      </h1>
      <div id="years" aria-hidden="true">
        <span class="year">2019</span>
        <span class="year">2020</span>
        <span class="year">2021</span>
      </div>
      <div class="table-wrap">
        <table>
          <caption>Assets</caption>
          <thead>
            <tr>
              <td></td>
              <th><span class="sr-only year">2019</span></th>
              <th><span class="sr-only year">2020</span></th>
              <th class="current"><span class="sr-only year">2021</span></th>
            </tr>
          </thead>
          <tbody>
            <tr class="data">
              <th>Cash <span class='description'>This is the cash we currently have on hand..</span></th>
              <td>$25</td>
              <td>$30</td>
              <td class="current">$28</td>
            </tr>
            <tr class="data">
            </tr>
            <tr class="data">
            </tr>
            <tr class="total">
            </tr>
          </tbody>
        </table>
        <table>
        </table>
        <table>
        </table>
      </div>
    </section>
  </main>
</body>
</html>
/* file: styles.css */

  **Your browser information:**

User Agent is: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36

Challenge: Learn More About CSS Pseudo Selectors By Building A Balance Sheet - Step 13

Link to the challenge:

You have an extra period (dot) at the end of the sentence. You may also need to switch to double quotes for the class instead of single quotes . (Fix the dot first, if it still fails try changing the quotes).