How can i do it

Your .red CSS rule should have a background property set to linear-gradient(90deg, rgb(255, 0, 0) 75%, rgb(0, 255, 0), rgb(0, 0, 255)).

 In the linear-gradient function, add a 75% color stop after the first red color argument. Do not add color stops to the other colors arguments.
/* file: index.html */
<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Colored Markers</title>
  <link rel="stylesheet" type="text/css" href="styles.css">
</head>
<body>
  <h1>CSS Color Markers</h1>
  <div class="container">
    <div class="marker red">
    </div>
    <div class="marker green">
    </div>
    <div class="marker blue">
    </div>
  </div>
</body>
</html>
/* file: styles.css */
h1 {
text-align: center;
}

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

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

.red {
background: linear-gradient(90deg, rgb(255, 0, 0) 75%, rgb(0, 255, 0), rgb(0, 0, 255));
}

.green {
background-color: #007F00;
}

.blue {
background-color: hsl(240, 100%, 50%);
}

  **Your browser information:**

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Safari/537.36

Challenge: Step 54

Link to the challenge:

Your CSS is correct. Do you have any browser extensions installed that change the colors on the page, such as a dark mode extension? If so then you’ll need to disable them if you want to pass any tests that deal with color.

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