Learn CSS Colors by Building a Set of Colored Markers - Step 1

Tell us what’s happening:
Describe your issue in detail here.
what am i doing wrong? i have looked at other posts and tried to figure it out but i can’t.

Your code so far

/*DOCTYPE*/
<html lang="en"></html>
``` <div class="marker" class="one">
      </div>
      <div class="marker">
      </div>
      <div class="marker">
      </div>




**Your browser information:**

User Agent is: <code>Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.5060.114 Safari/537.36 Edg/103.0.1264.62</code>

**Challenge:**  Learn CSS Colors by Building a Set of Colored Markers - Step 1

**Link to the challenge:**
https://www.freecodecamp.org/learn/2022/responsive-web-design/learn-css-colors-by-building-a-set-of-colored-markers/step-1

im suppose to put the class one in the “div”