Learn CSS Colors by Building a Set of Colored Markers - Step 72

HTML-CSS
1

Tell us what’s happening:
I’m not understanding what I am asked to do they keep saying that it’s wrong

Your code so far

/* file: index.Ext.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">
      <div class="marker red">
        <div class="sleeve"></div>
      </div>
      <div class="marker green">
      </div>
      <div class="marker blue">
      </div>
    </div>
  </body>
</html>

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

.container {
  background-color: rgb(255, 255, 255);
  padding: 10px 0;
}

.marker {
  width: 200px;
  height: 25px;
  margin: 10px auto;
}

.sleeve { 
background-colour: white(255, 255, 255, 1);
  width: 110px;
  height: 25px;
}

.red {
  background: linear-gradient(rgb(122, 74, 14), rgb(245, 62, 113), rgb(162, 27, 27));
}

.green {
  background: linear-gradient(#55680D, #71F53E, #116C31);
}

.blue {
  background: linear-gradient(hsl(186, 76%, 16%), hsl(223, 90%, 60%), hsl(240, 56%, 42%));
}

Your mobile information:

23106RN0DA - Android 13 - Android SDK 33

Challenge: Learn CSS Colors by Building a Set of Colored Markers - Step 72

Link to the challenge:

2

delete that, It´s just white.
and correct the word ‘colour’.