---
id: 5d822fd413a79914d39e98ee
title: Step 38
challengeType: 0
dashedName: step-38
---
# --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 */`.
# --hints--
You should add the comment `BACKGROUND BUILDINGS - "bb" stands for "background building"` above the `.bb1` selector.
```js
assert(/\/\*\s*BACKGROUND BUILDINGS - "bb" stands for "background building"\s*\*\//gi.test(code));
```
You should add the comment `FOREGROUND BUILDINGS - "fb" stands for "foreground building"` above the `.fb1` selector.
```js
assert(/\/\*\s*FOREGROUND BUILDINGS - "fb" stands for "foreground building"\s*\*\//gi.test(code));
```
# --seed--
## --seed-contents--
```html