---
id: 5d822fd413a79914d39e9913
title: Part 75
challengeType: 0
isBeta: true
---
## Description
Add the `building-wrap` class to the `fb1` element to center the sections.
## Instructions
## Tests
```yml
tests:
- text: test-text
testString: assert($(".fb1.building-wrap").length === 1);
```
## Challenge Seed
```html
freeCodeCamp Skyline Project
```