Help Step 12 css

It keeps telling me I need a h1 selector in my style element how do I fix that?

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8" />
  <title>Cafe Menu</title>
  <style 
  h1{
    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>
  **Your browser information:**

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/101.0.4951.64 Safari/537.36 Edg/101.0.1210.53

Challenge: Step 12

Link to the challenge:

You forgot to close your style element.