---
id: 5d822fd413a79914d39e9917
title: Part 78
challengeType: 0
dashedName: part-78
---
# --description--
You can add multiple gradients to an element by separating them with a comma (`,`) like this:
```css
gradient1(
colors
),
gradient2(
colors
);
```
Add a `repeating-linear-gradient` to `fb1c` below the one that's there; use your `--building-color4` from `0%` to `10%` and `--window-color4` from `10%` and `90%`. This will fill in behind the gradient you added last.
# --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*,\s*repeating-linear-gradient\(\s*var\(\s*--building-color4\s*\)\s*(0%\s*,|,)\s*var\(\s*--building-color4\s*\)\s*10%\s*,\s*var\(\s*--window-color4\s*\)\s*10%\s*,\s*var\(\s*--window-color4\s*\)\s*90%\s*\)\s*(;|})/g.test(
fb1c
)
);
```
# --seed--
## --seed-contents--
```html
freeCodeCamp Skyline Project
```
# --solutions--
```html
freeCodeCamp Skyline Project
```