Learn CSS Flexbox by Building a Photo Gallery - Step 9

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

It asks for a body selector in the css file and for it to have the following: " set the font-family to sans-serif , and give it a background-color of #f5f6f7 as the value.". I believe I have already done that, so I do not understand where the issue is.

  **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>Photo Gallery</title>
  <link rel="stylesheet" href="./styles.css">
</head>
<body>
  <header class="header">
    <h1>css flexbox photo gallery</h1>
  </header>
  <div class="gallery">
    <img src="https://cdn.freecodecamp.org/curriculum/css-photo-gallery/1.jpg">
    <img src="https://cdn.freecodecamp.org/curriculum/css-photo-gallery/2.jpg">
    <img src="https://cdn.freecodecamp.org/curriculum/css-photo-gallery/3.jpg">
    <img src="https://cdn.freecodecamp.org/curriculum/css-photo-gallery/4.jpg">
    <img src="https://cdn.freecodecamp.org/curriculum/css-photo-gallery/5.jpg">
    <img src="https://cdn.freecodecamp.org/curriculum/css-photo-gallery/6.jpg">
    <img src="https://cdn.freecodecamp.org/curriculum/css-photo-gallery/7.jpg">
    <img src="https://cdn.freecodecamp.org/curriculum/css-photo-gallery/8.jpg">
    <img src="https://cdn.freecodecamp.org/curriculum/css-photo-gallery/9.jpg">
  </div>
</body>
</html>
/* file: styles.css */
* {
box-sizing: border-box;
}

.body {
margin: 0 0 0 0;
font-family: sans-serif;
background-color: #f5f6f7;
}

.gallery img {
width: 100%;
max-width: 350px;
height: 300px;
}
  **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 Flexbox by Building a Photo Gallery - Step 9

Link to the challenge:

I believe this targets the elements with class equal to body. Not the body element.