Learn Basic CSS by Building a Cafe Menu - Step 14

Tell us what’s happening:
Describe your issue in detail here.
please show how can do this step . I try everything.

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>
    <main>
      <h1>CAMPER CAFE</h1>
      <p>Est. 2020</p>
      <section>
        <h2>Coffee</h2>
      </section>
    </main>
  </body>
</html>
/* file: styles.css */
h1 selector1{
  text-align:center;
}
h2 selector2{
  text-align:center;
}
p selector3{
  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 14

Link to the challenge:

Please click the reset button.

After that just copy and paste the css code you wrote (quoted here) into the styles.css file.