Learn CSS Variables by Building a City Skyline - Step 44

Displaying “Hint: You should use the background on .bb1d.”
although the background is set?!

  **Your code so far**
/* file: index.html */
<!DOCTYPE html>
<html lang="en">    
<head>
  <meta charset="UTF-8">
  <title>City Skyline</title>
  <link href="styles.css" rel="stylesheet" />   
</head>

<body>
  <div class="background-buildings">
    <div></div>
    <div></div>
    <div class="bb1">
      <div class="bb1a bb1-window"></div>
      <div class="bb1b bb1-window"></div>
      <div class="bb1c bb1-window"></div>
      <div class="bb1d"></div>
    </div>
    <div class="bb2"></div>
    <div class="bb3"></div>
    <div></div>
    <div class="bb4"></div>
    <div></div>
    <div></div>
  </div>

  <div class="foreground-buildings">
    <div></div>
    <div></div>
    <div class="fb1"></div>
    <div class="fb2"></div>
    <div></div>
    <div class="fb3"></div>
    <div class="fb4"></div>
    <div class="fb5"></div>
    <div class="fb6"></div>
    <div></div>
    <div></div>
  </div>
</body>
</html>
/* file: styles.css */
:root {
--building-color1: #aa80ff;
--building-color2: #66cc99;
--building-color3: #cc6699;
--building-color4: #538cc6;
--window-color1: black;
}

* {
border: 1px solid black;
box-sizing: border-box;
}

body {
height: 100vh;
margin: 0;
overflow: hidden;
}

.background-buildings, .foreground-buildings {
width: 100%;
height: 100%;
display: flex;
align-items: flex-end;
justify-content: space-evenly;
position: absolute;
top: 0;
}

/* BACKGROUND BUILDINGS - "bb" stands for "background building" */
.bb1 {
width: 10%;
height: 70%;
display: flex;
flex-direction: column;
align-items: center;
}

.bb1a {
width: 70%;
}

.bb1b {
width: 80%;
}

.bb1c {
width: 90%;
}
.bb1d {
width: 100%;
height: 70%;
background-color: var(--building-color1);
background: linear-gradient(
    orange,
    var(--building-color1),
    var(--window-color1)
);
}
.bb1-window {
height: 10%;
background: linear-gradient(
    var(--building-color1),
    var(--window-color1)
  );
}

.bb2 {
width: 10%;
height: 50%;
background-color: var(--building-color2);
}

.bb3 {
width: 10%;
height: 55%;
background-color: var(--building-color3);
}

.bb4 {
width: 11%;
height: 58%;
background-color: var(--building-color4);
}

/* FOREGROUND BUILDINGS - "fb" stands for "foreground building" */
.fb1 {
width: 10%;
height: 60%;
background-color: var(--building-color4);
}

.fb2 {
width: 10%;
height: 40%;
background-color: var(--building-color3);
}

.fb3 {
width: 10%;
height: 35%;
background-color: var(--building-color1);
}

.fb4 {
width: 8%;
height: 45%;
background-color: var(--building-color1);
position: relative;
left: 10%;
}

.fb5 {
width: 10%;
height: 33%;
background-color: var(--building-color2);
position: relative;
right: 10%;
}

.fb6 {
width: 9%;
height: 38%;
background-color: var(--building-color3);
}
  
  **Your browser information:**

Challenge: Learn CSS Variables by Building a City Skyline - Step 44

Link to the challenge:

The background is set, but you need to correctly apply the “linear-gradient” as its color.
something like:

something {
  background: linear-gradient( color1, color2, color3, etc );
}

Now just do that as it asks you:
Add a linear-gradient to .bb1d with orange as the first color, --building-color1 as the second, and --window-color1 as the third. Remember to use the gradient on the background property.

Here’s the .bb1d source part:

.bb1d {
    width: 100%;
    height: 70%;
    background-color: var(--building-color1);
    background: linear-gradient(
        orange,
        var(--building-color1),
        var(--window-color1)
    );
}

And I still get an error/hint when I test the code.
This hint also comes for all parts of the “Learn CSS Variables” challenge where I have to use linear-gradient in the background.
The usage of linear-gradient looks fine to me.
What am I missing?
Does anyone have a solution for how to pass the test?

remove the background-color

Your code is correct, remove the extra background-color you typed just like @gladlo said.

Even after removing the background-color and checking the code,
I still get the message:

“You should use the background on .bb1d .”

This is the code I checked:

.bb1d {
    width: 100%;
    height: 70%;
    background: linear-gradient(
        orange,
        var(--building-color1),
        var(--window-color1)
    );
}

Did you try restarting step and typing it again? If you’re using Safari browser try chrome please.