Learn Basic CSS by Building a Cafe Menu - Step 15

Tell us what’s happening:
Describe your issue in detail here.
I would need some help for this one.

  **Your code so far**
/* file: index.html */
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8" />
  <title>Cafe Menu</title>
  <style>
    h1, h2, p {
      text-align: center;
    }
  </style>
</head>
<body>
  <header>
    <h1>CAMPER CAFE</h1>
    <p>Est. 2020</p>
  </header>
  <main>
    <section>
      <h2>Coffee</h2>
    </section>
  </main>
</body>
</html>
/* file: styles.css */
styles.css: h1, h2, p

  **Your browser information:**

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.5060.114 Safari/537.36 Edg/103.0.1264.62

Challenge: Learn Basic CSS by Building a Cafe Menu - Step 15

Link to the challenge:

Does the CSS you wrote in the styles.css editor look exactly like the CSS you wrote in the style element in the HTML?

CSS in HTML:

h1, h2, p {
  text-align: center;
}

CSS in styles.css editor:

styles.css: h1, h2, p

Thank you very much for your help and consideration. I have understood my mistake and made the appropriate corrections!