---
id: 5d822fd413a79914d39e9916
title: Part 78
challengeType: 0
isHidden: true
---
## Description
Don't worry about the space at the bottom, everything will get moved down later when you add some height to the element at the top of the building.
Add a `repeating-linear-gradient` to `fb1c` with a `90deg` angle, your `--building-color4` from `0%` to `10%` and `transparent` from `10%` to `15%`.
## Instructions
## Tests
```yml
tests:
- text: test-text
testString: const fb1c = code.match(/\.fb1c\s*{[\s\S]+?[^}]}/g)[0]; assert(/background\s*:\s*repeating-linear-gradient\(\s*90deg\s*,\s*var\(\s*--building-color4\s*\)\s*(0%\s*,|,)\s*var\(\s*--building-color4\s*\)\s*10%\s*,\s*transparent\s*10%\s*,\s*transparent\s*15%\s*\)\s*(;|})/g.test(fb1c));
```
## Challenge Seed
```html
freeCodeCamp Skyline Project
```