Learn CSS Colors by Building a Set of Colored Markers - Step 16

HTML-CSS
1

Tell us what’s happening:
Describe your issue in detail here.
i added the required class=“one” to the first div element and it is still giving me an error. i have also tried without a comma in between them and that isnt right either. Thanks.
Your code so far

<!-- file: index.html -->
<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Colored Markers</title>
    <link rel="stylesheet" href="styles.css">
  </head>
  <body>
    <h1>CSS Color Markers</h1>
    <div class="container">

<!-- User Editable Region -->

      <div class="marker", class="one">
      </div>
      <div class="marker">
      </div>
      <div class="marker">
      </div>

<!-- User Editable Region -->

    </div>
  </body>
</html>

/* file: styles.css */
h1 {
  text-align: center;
}

.marker {
  width: 200px;
  height: 25px;
  background-color: red;
  margin: 10px auto;
}

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/109.0.0.0 Safari/537.36

Challenge: Learn CSS Colors by Building a Set of Colored Markers - Step 16

Link to the challenge:

2

When you have to add more than one class to an HTML element follow the rule:

<element class="name1 name2"></element>
3

thank you but is this something that has been covered before?

4

You were given an example in this challenge:

image

5

i have been struggling with the wording of these commands and their examples when and if there is an example.