Learn CSS Flexbox by Building a Photo Gallery - Step 20

What is the problem here?

  **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;
font-family: sans-serif;
background: #f5f6f7;
}

.header {
text-align: center;
text-transform: uppercase;
padding: 32px;
background-color: #0a0a23;
color: #fff;
border-bottom: 4px solid #fdb347;
}

.gallery {
display: flex;
flex-direction: row;
flex-wrap: wrap;
justify-content: center;
align-items: center;
gap: 16px;
max-width: 1400px;
margin: 0 auto;
padding: 20px 10px;
}

.gallery img {
width: 100%;
max-width: 350px;
height: 300px;
object-fit: cover;
border-radius: 10px;
}

.gallery ::after{
content:"";
width: 350px;
}
  **Your browser information:**

User Agent is: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36

Challenge: Learn CSS Flexbox by Building a Photo Gallery - Step 20

Link to the challenge:

Hello there.

Do you have a question?

If so, please edit your post to include it in the Tell us what’s happening section.

Learning to describe problems is hard, but it is an important part of learning how to code.

Also, the more information you give us, the more likely we are to be able to help.

On The “Learn CSS Firebox by Building a Photo Gallery” Section of the curriculum I believe there is some type of error. I have done this a million times now and I am certain I am correct, however they will not pass it. See attached photos for instructions followed by my code!
Thank you

![Screen Shot 2022-08-22 at 10.33.38 PM|585x500](upload://bC


C0y8ruR7sqmJQnanajyUNEx6X.png)

The problem will be that the ::after pseudo-element (and other pseudo-elements) needs to be attached to the selector, without space between them.

.example1::after {
content: "This is valid";
}
.example2 ::after{
content: "This is not valid";
}
1 Like

Missed that! Thank you!! That’s been driving me crazy!!!

I am to sure why this isn’t passing. attached is a photo of the Instructions and my code. Can not figure this out.

  **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;
font-family: sans-serif;
background: #f5f6f7;
}

.header {
text-align: center;
text-transform: uppercase;
padding: 32px;
background-color: #0a0a23;
color: #fff;
border-bottom: 4px solid #fdb347;
}

.gallery {
display: flex;
flex-direction: row;
flex-wrap: wrap;
justify-content: center;
align-items: center;
gap: 16px;
max-width: 1400px;
margin: 0 auto;
padding: 20px 10px;
}

.gallery img {
width: 100%;
max-width: 350px;
height: 300px;
object-fit: cover;
border-radius: 10px;
}

.gallery ::after {
content: "";
width: 350;
}
  **Your browser information:**

User Agent is: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.4 Safari/605.1.15

Challenge: Learn CSS Flexbox by Building a Photo Gallery - Step 20

Link to the challenge:

What specific part of the instructions or hints is confusing for you?

You still have not fixed this.