Kindly help am stuck

Tell us what’s happening:
Describe your issue in detail here.

  **Your code so far**
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8" />
  <title>Cafe Menu</title>
  <style>h1 <
  property: value;
  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 (Linux; Android 11; SM-A207F) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/97.0.4692.87 Mobile Safari/537.36

Challenge: Step 12

Link to the challenge:

Hi.
This your code above is incorrect.
Take a look at example once more please

element {
 property: value;
}

h1 is an element
text-align is a property
center is a value of property

Here below I will do some styling for some other element:

h3 {
    font-size: 2rem;
}