Learn CSS Colors by Building a Set of Colored Markers - Step 51

Tell us what’s happening:
Describe your issue in detail here.
Okay so I’m confused does the “rgb” have to be inside the color gradient or am I right to drop down another box reading the new line of code with it?

  **Your code so far**
/* file: index.html */
<!DOCTYPE html>
<html lang="en">
  <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: linear-gradient(90deg), 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_6_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.6.1 Mobile/15E148 Safari/604.1

Challenge: Learn CSS Colors by Building a Set of Colored Markers - Step 51

Link to the challenge:

According to MDN web docs,

If the first argument of linear-gradient() function is the degree, then it has to be followed with the colour in the second argument.

Arguments are separated in commas like this function(argument1, argument2, ... )

If you wrote it like this

the arguments provided would be invalid as it only receive the degree of the gradient whereas linear-gradient() needs at least one colour.

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