Tell us what’s happening:
Describe your issue in detail here.
please can someone help me… it says i need to add another class, which i did but its still giving me the error code
**Your code so far**
/* file: index.html */
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<title>Piano</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
</head>
<body>
<div id="piano">
<div class="keys">
<div class="key"></div>
<div class="key" class="black--key"></div>
<div class="key" class="black--key"></div>
<div class="key"></div>
<div class="key" class="black--key"></div>
<div class="key" class="black--key"></div>
<div class="key" class="black--key"></div>
</div>
</div>
</body>
</html>
/* file: styles.css */
**Your browser information:**
User Agent is: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.0.0 Safari/537.36
Challenge: Learn Responsive Web Design by Building a Piano - Step 6
Link to the challenge: