"Basic CSS: Give a Background Color to a div Element" is broken

Tell us what’s happening:

I followed everything the challenge said and the div element has a silver background, yet it keeps telling me to give the div element a silver background. I created the class in the style block as it said, without typos, applied the class to the div element as it said (without typos), and it is still broken. I tried reloading the page and that doesn’t work either. I also tried other methods of giving the div element a silver background, such as creating a div element class in the style block itself, and that didn’t work. This is very frustrating since I know I did this correctly, but I can’t continue with my lessons because it won’t submit.

Your code so far

<link href="https://fonts.googleapis.com/css?family=Lobster" rel="stylesheet" type="text/css">
.silver-background {
  background-color: silver;

.red-text {
  color: red;

h2 {
  font-family: Lobster, monospace;

p {
  font-size: 16px;
  font-family: monospace;

.thick-green-border {
  border-color: green;
  border-width: 10px;
  border-style: solid;
  border-radius: 50%;

.smaller-image {
  width: 100px;

<h2 class="red-text">CatPhotoApp</h2>
<p class="red-text">Click here to view more <a href="#">cat photos</a>.</p>

<a href="#"><img class="smaller-image thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>

<div class="silver-background">
  <p>Things cats love:</p>
    <li>cat nip</li>
    <li>laser pointers</li>
  <p>Top 3 things cats hate:</p>
    <li>flea treatment</li>
    <li>other cats</li>

<form action="/submit-cat-photo">
  <label><input type="radio" name="indoor-outdoor" checked> Indoor</label>
  <label><input type="radio" name="indoor-outdoor"> Outdoor</label><br>
  <label><input type="checkbox" name="personality" checked> Loving</label>
  <label><input type="checkbox" name="personality"> Lazy</label>
  <label><input type="checkbox" name="personality"> Energetic</label><br>
  <input type="text" placeholder="cat photo URL" required>
  <button type="submit">Submit</button>

Your browser information:

User Agent is: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:75.0) Gecko/20100101 Firefox/75.0.

Challenge: Give a Background Color to a div Element

Link to the challenge:

@Ana_1 it seems there’s nothing wrong with your code, I’d recommend you try this lesson in a different browser.

1 Like

Yup, that was it. I switched to Chrome and tried it there, and it worked. Guess it’s just a bug on Firefox. Thanks!

Having the same issue. I tried this on chrome and on IE. It still says class needs to be defined.

Hi @mk.sharathmk. Welcome to FCC. Try using a different browser as suggested by @ShAfi above.

HaHaHa… it worked on Mozilla firefox. As Ana_1 had the this issue in firefox, i did not try that. Thanks

1 Like