How to add my height and width

**Tell us what’s happening:How would i add my height and width
Describe your issue in detail here.

  **Your code so far**
\ file: <!DOCTYPE html>
<html>
<head>
  <title>Registration Form</title>
	  <link rel="stylesheet" type="text/css" href="styles.css" />
</head>
<body>
  <h1>Registration Form</h1>
  <p>Please fill out this form with the required information</p>
</body>
</html>
<!DOCTYPE html>
<html>
<head>
  <title>Registration Form</title>
	  <link rel="stylesheet" type="text/css" href="styles.css" />
</head>
<body>
  <h1>Registration Form</h1>
  <p>Please fill out this form with the required information</p>
</body>
</html>
\ file: <div> width 100% height 100vh 
<div> width 100% height 100vh 
  **Your browser information:**

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/100.0.4896.127 Safari/537.36

Challenge: Step 7

Link to the challenge:

If you followed the lessons until this point you should know that proper CSS syntax is as follows:

element {
property: value;
}

With this syntax you can add as many properties as you want. The body is considered an element in HTML.