Learn CSS Colors by Building a Set of Colored Markers - Step 86

Tell us what’s happening:
so I couldn’t understand what exactly to do …can you guys please help me . the hint is quoted below,

Hint

Your .red CSS rule should have a box-shadow shorthand property and with the value 5px 5px red.

  **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">
    <div class="marker red">
      <div class="cap"></div>
      <div class="sleeve"></div>
    </div>
    <div class="marker green">
      <div class="cap"></div>
      <div class="sleeve"></div>
    </div>
    <div class="marker blue">
      <div class="cap"></div>
      <div class="sleeve"></div>
    </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;
}

.cap {
width: 60px;
height: 25px;
}

.sleeve {
width: 110px;
height: 25px;
background-color: rgba(255, 255, 255, 0.5);
border-left: 10px double rgba(0, 0, 0, 0.75);
}

.cap, .sleeve {
display: inline-block;
}

.red {
background: linear-gradient(rgb(122, 74, 14), rgb(245, 62, 113), rgb(162, 27, 27));
box-shadow: shorthand(5px, 5px, red);
}

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

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

  **Your browser information:**

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36

Challenge: Learn CSS Colors by Building a Set of Colored Markers - Step 86

Link to the challenge:

You are trying to use a shorthand function, which there is none in CSS. The property name box-shadow is the shorthand property. You want to set it to the following:

" 5px for offsetX, 5px for offsetY, and red for color."

Refer to the example box-shadow property in the instructions for how to do this.

Thank you so much , It’s really useful .