Tell us what’s happening:
Describe your issue in detail here.
Your code so far
/* file: index.Ext.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" 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.Ext.css */
Your mobile information:
TECNO KD7 - Android 10 - Android SDK 29
Challenge: Learn Responsive Web Design by Building a Piano - Step 6
Link to the challenge: