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freeCodeCamp/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/step-015.md
Nicholas Carrigan (he/him) b36cdbafd1 chore: rename "part" to "step" (#43934)
* chore: rename part to step

* chore: update metas

* chore: more renaming

* chore: update tooling

* chore: update frontmatter

* chore(tools): title testing
2021-10-21 18:07:52 +01:00

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id, title, challengeType, dashedName
id title challengeType dashedName
5d822fd413a79914d39e98d7 Step 15 0 step-15

--description--

To use a variable, put the variable name in parentheses with var in front of them like this: var(--variable-name). Add your variable as the value of the background-color property of the .bb1a class. Whatever value you gave the variable will be applied to whatever property you use it on. In this case, your variable has the value of #999. So #999 will be used as the value for the background-color property.

--hints--

The background-color of the bb1a element should be set.

assert.exists(new __helpers.CSSHelp(document).getStyle('.bb1a')?.backgroundColor)

You should use var(--building-color1) to set the background-color of the .bb1a element.

assert.equal(new __helpers.CSSHelp(document).getStyle('.bb1a')?.backgroundColor.trim(), 'var(--building-color1)');

--seed--

--seed-contents--

<!DOCTYPE html>
<html>    
  <head>
    <title>freeCodeCamp Skyline Project</title>
    <link href="styles.css" rel="stylesheet" type="text/css" />   
  </head>

  <body>
    <div class="background-buildings">
      <div class="bb1">
        <div class="bb1a"></div>
        <div class="bb1b"></div>
        <div class="bb1c"></div>
        <div class="bb1d"></div>
      </div>
    </div>
  </body>
</html>
* {
  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%;
  display: flex;
  flex-direction: column;
  align-items: center;
  --building-color1: #999;
}
--fcc-editable-region--
.bb1a {
  width: 70%;
  height: 10%;
}
--fcc-editable-region--
.bb1b {
  width: 80%;
  height: 10%;
}

.bb1c {
  width: 90%;
  height: 10%;
}

.bb1d {
  width: 100%;
  height: 70%;
}