Learn CSS Variables by Building a City Skyline - Step 40

HTML-CSS
1

Tell us what’s happening:
Describe your issue in detail here.

Hello everybody, Im stuck with this and maybe it is because im overseeing a solution or a typo perhaps, but been struggling with this set of instructions and how to sort it out.

Im being asked to “add a background property below the background-color property. Set it as a gradient of type linear-gradient that uses --building-color1 as the first color and --window-color1 as the second”. I wrote:

.bb1a {
  width: 70%;
  height: 10%;
  background-color: var(--building-color1); background: linear-gradient((var--building-color1), (var--window-color1));
}

But is still not working.
Any advise anyone?

It keeps prompting the hint:
“You should apply a background to .bb1a right after the background-color.”

Thanks.

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"></div>
        <div class="bb1b"></div>
        <div class="bb1c"></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;
}

/* User Editable Region */

.bb1a {
  width: 70%;
  height: 10%;
  background-color: var(--building-color1); background: linear-gradient((var--building-color1), (var--window-color1));
}

/* User Editable Region */

.bb1b {
  width: 80%;
  height: 10%;
  background-color: var(--building-color1);
}

.bb1c {
  width: 90%;
  height: 10%;
  background-color: var(--building-color1);
}

.bb1d {
  width: 100%;
  height: 70%;
  background-color: var(--building-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:

User Agent is: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:109.0) Gecko/20100101 Firefox/115.0

Challenge: Learn CSS Variables by Building a City Skyline - Step 40

Link to the challenge:

2

You just have a minor syntactical error.

Can you spot the difference between how you are using --building-color1 as a part of your background vs how it’s being used in background-color ?

3

Oh, rigth!
On writing the formula I’ve misplaced the position of the opening parentesis.
So ashamed I did not notice it, until you called the detail. I’ve even spent a good amount of time reseting it and re-writing it and reseting it and re-writing it to see if there was a typo. But it was not a typo, it was a bad construction of the formula.

.bb1a {
  width: 70%;
  height: 10%;
  background-color: var(--building-color1);
  background: linear-gradient(
      var(--building-color1),
      var(--window-color1)
    );
}

Thanks @mackfey92 :slight_smile:

4

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