---
id: 5d822fd413a79914d39e98ee
title: Part 38
challengeType: 0
isHidden: true
---
## Description
Your code is starting to get quite long. Add a comment above the `fb1` class that says `FOREGROUND BUILDINGS - "fb" stands for "foreground building"` to help people understand your code. Above the `bb1` class add another comment that says `BACKGROUND BUILDINGS - "bb" stands for "background building"`. If you don't remember, comments in CSS look like this: `/* Comment here */`.
## Instructions
## Tests
```yml
tests:
- text: test-text
testString: assert(/\/\*\s*BACKGROUND BUILDINGS - "bb" stands for "background building"\s*\*\//g.test(code) && /\/\*\s*FOREGROUND BUILDINGS - "fb" stands for "foreground building"\s*\*\//g.test(code));
```
## Challenge Seed
```html
freeCodeCamp Skyline Project
```