---
id: 5d822fd413a79914d39e9916
title: Part 77
challengeType: 0
dashedName: part-77
---
# --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%`.
# --hints--
test-text
```js
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
)
);
```
# --seed--
## --seed-contents--
```html
freeCodeCamp Skyline Project
```
# --solutions--
```html
freeCodeCamp Skyline Project
```