Learn Basic CSS by Building a Cafe Menu - Step 17

Tell us what’s happening:
Describe your issue in detail here.
what is wrong with my code so far. I’m doing what step 17 is asking
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>Cafe Menu</title>
    <link href="styles.css" rel="stylesheet"/>
  </head>
  <body>
    <main>
      <h1>CAMPER CAFE</h1>
      <p>Est. 2020</p>
      <section>
        <h2>Coffee</h2>
      </section>
    </main>
  </body>
</html>
/* file: styles.css */
h1, h2, p {
  text-align: center;
}

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/107.0.0.0 Safari/537.36

Challenge: Learn Basic CSS by Building a Cafe Menu - Step 17

Link to the challenge:

leave exactly one space after the comma