Learn CSS Variables by Building a City Skyline - Step 11

Tell us what’s happening:
Hi! I’m having issues with the nested divs. I’ve added 4 new divs inside the .bb1 as instructed but it doesn’t work. I don’t know how to proceed T_T

Your code so far

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

    <div class="background-buildings">

<!-- User Editable Region -->

      <div class="bb1">
        <div class="bb1a"></div>
        <div class="bb1b"></div>
        <div class="bb1c"></div>
        <div class="bb1d"></div>

<!-- User Editable Region -->

/* file: styles.css */
* {
  border: 1px solid black;
  box-sizing: border-box;

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

.background-buildings {
  width: 100%;
  height: 100%;

.bb1 {
  width: 10%;
  height: 70%;

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/ Safari/537.36

Challenge: Learn CSS Variables by Building a City Skyline - Step 11

Link to the challenge:

hello and welcome back to fcc forum :slight_smile:

  • this works on my end, if its not from your side then try to disable any “dark theme” extension from your browser and try again
  • otherwise try another browser which does not have any “dark theme” extension

happy coding :slight_smile:

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