---
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--
test-text
```js
const bb1 = $('.bb1');
assert(
bb1.css('display') === 'flex' &&
bb1.css('flex-direction') === 'column' &&
bb1.css('align-items') === 'center'
);
```
# --seed--
## --seed-contents--
```html
freeCodeCamp Skyline Project
```
# --solutions--
```html
freeCodeCamp Skyline Project
```