---
id: 5d822fd413a79914d39e990f
title: Part 71
challengeType: 0
isHidden: true
---
## Description
The windows are stacked on top of each other at the left of the section, behind the purple building. Add a new class below `building-wrap` called `window-wrap` and add these properties to it: `display: flex;`, `align-items: center;`, and `justify-content: space-evenly;`. This will be used in a few places to center window elements vertically and space them evenly in their parent.
## Instructions
## Tests
```yml
tests:
- text: test-text
testString: const wWrap = code.match(/\.window-wrap\s*{[\s\S]+?[^}]}/g)[0]; assert(/display\s*:\s*flex\s*(;|})/g.test(wWrap) && /align-items\s*:\s*center\s*(;|})/g.test(wWrap) && /justify-content\s*:\s*space-evenly\s*(;|})/g.test(wWrap));
```
## Challenge Seed
```html
freeCodeCamp Skyline Project
```