My background-buildings css is right but i can't subbmit the result what is happing?

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

  **Your code so far**
/* file: index.html */
<!DOCTYPE html>
<html>    
<head>
  <title>City Skyline</title>
  <link href="styles.css" rel="stylesheet" type="text/css" />
</head>

<body>
  <div class="background-buildings"></div>
</body>
</html>
/* file: styles.css */
* {
border: 1px solid black;
box-sizing: border-box;
}

body {
height: 100vh;
margin: 0;
overflow: hidden;
}
.background-buidlings {
width: 100%;
height: 100%;
}

  
  **Your browser information:**

User Agent is: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.5005.61 Safari/537.36

Challenge: Step 9

Link to the challenge:

@nynwadhyhcz8

Hello!

I believe the problem is a typo in your .background-buildings. Don’t worry. Typos happen to me too. :wink:

Hope this helps!