Learn the CSS Box Model by Building a Rothko Painting - Step 37

Tell us what’s happening:
Describe your issue in detail here.

  **Your code so far**
/* file: styles.css */
.canvas {
width: 500px;
height: 600px;
background-color: #4d0f00;
overflow: hidden;
filter: blur(2px);
}

.frame {
border: 50px solid black;
width: 500px;
padding: 50px;
margin: 20px auto;
}

.one {
width: 425px;
height: 150px;
background-color: #efb762;
margin: 20px auto;
.one {
box-shadow: 0 0 3px 3px #efb762;
}
}

.two {
width: 475px;
height: 200px;
background-color: #8f0401;
margin: 0 auto 20px;
}

.one, .two {
filter: blur(1px);
}

.three {
width: 91%;
height: 28%;
background-color: #b20403;
margin: auto;
filter: blur(2px);
}
/* file: index.html */
<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Rothko Painting</title>
  <link href="./styles.css" rel="stylesheet">
</head>
<body>
  <div class="frame">
    <div class="canvas">
      <div class="one"></div>
      <div class="two"></div>
      <div class="three"></div>
    </div>
  </div>
</body>
</html>
  **Your browser information:**

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.0.0 Safari/537.36

Challenge: Learn the CSS Box Model by Building a Rothko Painting - Step 37

Link to the challenge:

You just need to add the box-shadow property to existing .one selector , nesting a new selector is not required.