Learn Responsive Web Design by Building a Piano - Step 6

Tell us what’s happening:
Describe your issue in detail here.
It keeps telling me the second .key element should have the class “black–key.” I think I am doing that but it says it I am not. Can someone help me with this?
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>

<!-- User Editable Region -->

    <div id="piano">
      <div class="keys">
        <div class="key"></div>
        <div class="key,black--key"></div>
        <div class="key,black--key"></div>
        <div class="key"></div>
        <div class="key,black--key"></div>
        <div class="key,black--key"></div>
        <div class="key,black--key"></div>
      </div>
    </div>

<!-- User Editable Region -->

  </body>
</html>
/* file: styles.css */

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/110.0.0.0 Safari/537.36

Challenge: Learn Responsive Web Design by Building a Piano - Step 6

Link to the challenge:

Hi @smartnivie :wave:

When adding multiple class attributes to a tag, separate them with spaces.

See this example:

<tag class="className1 className2, className3"></tag>

Happy Coding :star_struck:

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