I am not able to change the background in html-css

[HEMANG.Coder]

Tell us what’s happening:
I’ve correctly did what the background-color test said but i’m not able to pass the test.I am not able to find any mistake.please help.

  **Your code so far**

<link href="https://fonts.googleapis.com/css?family=Lobster" rel="stylesheet" type="text/css">
<style>

.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;
}
</style>

<h2 class="red-text">CatPhotoApp</h2>
<main>
<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>
  <ul>
    <li>cat nip</li>
    <li>laser pointers</li>
    <li>lasagna</li>
  </ul>
  <p>Top 3 things cats hate:</p>
  <ol>
    <li>flea treatment</li>
    <li>thunder</li>
    <li>other cats</li>
  </ol>
</div>

<form action="https://freecatphotoapp.com/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>
</form>
</main>

  **Your browser information:**

User Agent is: Mozilla/5.0 (Windows NT 6.1; rv:88.0) Gecko/20100101 Firefox/88.0.

Challenge: Give a Background Color to a div Element

Link to the challenge:

freeCodeCamp.org

[Roma]

@HEMANG.Coder

.silver-background{
  background-color: silver
;}

Why is there a newline between the color and the semi-colon?
When I correct that the tests pass.

[HEMANG.Coder]

thanks.I’ve passed the test.

[Roma]

Good job. Syntax is important and typo’s are easy to make.

[wtadeubarros]

Thanks for the patience Roma, it’s very positive to see people taking their time to help the newcomers.