Step 49 color markers

Tell us what’s happening:
Please can someone help me what im i not getting right.
The background property of the .red css rule should be changed to background.
I have done that but still not getting it i need help please

  **Your code so far**
/* file: index.html */
<!DOCTYPE html>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Colored Markers</title>
  <link rel="stylesheet" href="styles.css">
  <h1>CSS Color Markers</h1>
  <div class="container">
    <div class="marker red">
    <div class="marker green">
    <div class="marker blue">
/* file: styles.css */
h1 {
text-align: center;

.container {
background-color: rgb(255, 255, 255);
padding: 10px 0;

.marker {
width: 200px;
height: 25px;
margin: 10px auto;

.red {
background: rgb(255, 0, 0);

.green {
background-color: #007F00;

.blue {
background-color: hsl(240, 100%, 50%);

  **Your browser information:**

User Agent is: Mozilla/5.0 (iPhone; CPU iPhone OS 15_4 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/101.0.4951.58 Mobile/15E148 Safari/604.1

Challenge: Step 49

Link to the challenge:

try restarting the challenge and re-entering the code. i noticed this once or twice also and this was my solution. reposted my entry below looks like the code is the same (ex spacing)

.red {
background: rgb(255, 0, 0);