help on this error

Tell us what’s happening:
I don’t understand why when I check this code it says “Your link element should be a self-closing element”.

  **Your code so far**

<!DOCTYPE html>
<html>
<head>
  <title>Registration Form</title>
  <link rel="stylesheet" type="text/css" href="styles.css">
</head>
<body>
</body>
</html>
  **Your browser information:**

User Agent is: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/99.0.4844.84 Safari/537.36

Challenge: Step 4

Link to the challenge:

selfclosing you wanna add a / at the end
images are self closing for example

<img src="photo.jpg" />