Responsive Web Design step 17 HELP!

Hi I have been having some problems with this code , it keeps on saying- Your link element should have a rel attribute with the value stylesheet.
please I need helpㅠㅠ

  **Your code so far**
/* file: index.html */
<!DOCTYPE html>
<html lang="en">
<head>
  <link rel:"stylesheet" href:"styles.css">
  <meta charset="utf-8" />
  <title>Cafe Menu</title>
</head>
<body>
  <header>
    <h1>CAMPER CAFE</h1>
    <p>Est. 2020</p>
  </header>
  <main>
    <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 (X11; CrOS x86_64 14695.85.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Safari/537.36

Challenge: Step 17

Link to the challenge:

Look at other elements, is this how you assign values to attributes?

Thank you now I have seen my error