25aa04e2e7
* chore(curriculum): accessibility-quiz * chore(curriculum): cafe-menu * chore(curriculum): ferris-wheel * chore(curriculum): fix ferris-wheel tests * chore(curriculum): colored-markers * chore(curriculum): photo-gallery * chore(curriculum): magazine * chore(curriculum): penguin * chore(curriculum): city-skyline * chore(curriculum): registration-form * chore(curriculum): picasso-painting * chore(curriculum): balance-sheet * chore(curriculum): piano * chore(curriculum): rothko-painting * fix: title min 15 chars
98 lines
1.8 KiB
Markdown
98 lines
1.8 KiB
Markdown
---
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id: 5d822fd413a79914d39e98d7
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title: Step 15
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challengeType: 0
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dashedName: step-15
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---
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# --description--
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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.
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# --hints--
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The `background-color` of the `bb1a` element should be set.
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```js
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assert.exists(new __helpers.CSSHelp(document).getStyle('.bb1a')?.backgroundColor)
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```
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You should use `var(--building-color1)` to set the `background-color` of the `.bb1a` element.
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```js
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assert.equal(new __helpers.CSSHelp(document).getStyle('.bb1a')?.backgroundColor.trim(), 'var(--building-color1)');
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```
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# --seed--
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## --seed-contents--
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```html
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<!DOCTYPE html>
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<html>
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<head>
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<title>City Skyline</title>
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<link href="styles.css" rel="stylesheet" type="text/css" />
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</head>
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<body>
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<div class="background-buildings">
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<div class="bb1">
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<div class="bb1a"></div>
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<div class="bb1b"></div>
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<div class="bb1c"></div>
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<div class="bb1d"></div>
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</div>
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</div>
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</body>
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</html>
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```
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```css
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* {
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border: 1px solid black;
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box-sizing: border-box;
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}
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body {
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height: 100vh;
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margin: 0;
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overflow: hidden;
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}
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.background-buildings {
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width: 100%;
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height: 100%;
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}
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.bb1 {
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width: 10%;
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height: 70%;
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display: flex;
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flex-direction: column;
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align-items: center;
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--building-color1: #999;
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}
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--fcc-editable-region--
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.bb1a {
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width: 70%;
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height: 10%;
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}
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--fcc-editable-region--
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.bb1b {
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width: 80%;
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height: 10%;
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}
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.bb1c {
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width: 90%;
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height: 10%;
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}
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.bb1d {
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width: 100%;
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height: 70%;
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}
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```
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