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freeCodeCamp/curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-013.md
Shaun Hamilton ff20199e63 feat(curriculum): add tests to css variables skyline (#42067)
* add(tests): parts 1-2

* refactor for multi-file editor, and add temp css tests

* re-re-rebasing

* add link to subsequent challenges

* add test strings to 007-015

* add final tests 001-016

* fix 005-007, add 017-022 tests and test strings

* add: tests 021-030, and formatting

* add: 031-034 tests

* tests: add 035-046

* fix: test in 021

* tests: add 047-050

* format: 009, 051-118 remove css whitespace

* tests: add 051-078

* tests: add 079-105

* tests: add 104-118

* fix: empty -> isEmpty, and include -> match

* fix: correct editable region

* fix: formatting and spelling

* fix: test logic, and add TODO for whitespace

* fix: add final part solution 🤦‍♂️

* fix typo in part-006

* remove whitespace in prep

* getStyleDeclaration -> getStyle

* remove editable region from solution 🤦‍♂️

* fix: correct tests to fail on initial

* fix: add missing regex

Co-authored-by: gikf <60067306+gikf@users.noreply.github.com>

* fix: correct tests

* remove commas and stuff 🤷‍♂️

Co-authored-by: Nicholas Carrigan (he/him) <nhcarrigan@gmail.com>

* uppercaserise doctype

Co-authored-by: Nicholas Carrigan (he/him) <nhcarrigan@gmail.com>

* add "the"

Co-authored-by: Nicholas Carrigan (he/him) <nhcarrigan@gmail.com>

* remove half-colon

Co-authored-by: Nicholas Carrigan (he/him) <nhcarrigan@gmail.com>

* use more boring form of the word "shoudl"

Co-authored-by: Nicholas Carrigan (he/him) <nhcarrigan@gmail.com>

* add suggestions to tests

* Update curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-015.md

* Update curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-016.md

* Update curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-016.md

* Update curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-016.md

* Update curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-022.md

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* Update curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-026.md

* Update curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-035.md

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* Update curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-090.md

* Update curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-058.md

* Update curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-064.md

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* Update curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-076.md

* Update curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-070.md

* Update curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-079.md

* Update curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-085.md

* Update curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-086.md

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* Update curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-019.md

* Update curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-019.md

* Update curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-019.md

* Update curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-074.md

* Update curriculum/challenges/english/01-responsive-web-design/css-variables-skyline/part-078.md

* fix: the few commits I couldn't add on github

* fix: lesson 41

Co-authored-by: gikf <60067306+gikf@users.noreply.github.com>
Co-authored-by: Nicholas Carrigan (he/him) <nhcarrigan@gmail.com>
Co-authored-by: Tom <20648924+moT01@users.noreply.github.com>
2021-07-15 22:46:40 -05:00

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---
id: 5d822fd413a79914d39e98d5
title: Part 13
challengeType: 0
dashedName: part-13
---
# --description--
Give your `.bb1` element these style properties: `display: flex;`, `flex-direction: column;`, and `align-items: center;`. This will center the parts of the building using "flex" or "flexbox". You will learn about it in more detail on another project.
# --hints--
You should not change the `.bb1` `width` or `height` properties.
```js
const bb1Style = new __helpers.CSSHelp(document).getStyle('.bb1');
assert.equal(bb1Style?.width, '10%');
assert.equal(bb1Style?.height, '70%');
```
You should give the `.bb1` element a `display` of `flex`.
```js
const bb1Style = new __helpers.CSSHelp(document).getStyle('.bb1');
assert.equal(bb1Style?.display, 'flex');
```
You should give the `.bb1` element a `flex-direction` of `column`.
```js
const bb1Style = new __helpers.CSSHelp(document).getStyle('.bb1');
assert.equal(bb1Style?.flexDirection, 'column');
```
You should give the `.bb1` element a `align-items` of `center`.
```js
const bb1Style = new __helpers.CSSHelp(document).getStyle('.bb1');
assert.equal(bb1Style?.alignItems, 'center');
```
# --seed--
## --seed-contents--
```html
<!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>
```
```css
* {
border: 1px solid black;
box-sizing: border-box;
}
body {
height: 100vh;
margin: 0;
overflow: hidden;
}
.background-buildings {
width: 100%;
height: 100%;
}
--fcc-editable-region--
.bb1 {
width: 10%;
height: 70%;
}
--fcc-editable-region--
.bb1a {
width: 70%;
height: 10%;
}
.bb1b {
width: 80%;
height: 10%;
}
.bb1c {
width: 90%;
height: 10%;
}
.bb1d {
width: 100%;
height: 70%;
}
```