---
id: 612e8279827a28352ce83a72
title: Step 7
challengeType: 0
dashedName: step-7
---
# --description--
Now copy the set of seven `.key` elements, and paste two more sets into the `.keys` div.
# --hints--
You should have 21 `.key` elements.
```js
const keys = document.querySelectorAll('.key');
assert(keys?.length === 21);
```
You should have 15 `.black--key` elements.
```js
const blackKeys = document.querySelectorAll('.black--key');
assert(blackKeys?.length === 15);
```
All `.key` elements should be within your `.keys` element.
```js
const keys = document.querySelector('.keys');
assert(keys?.querySelectorAll('.key')?.length === 21);
```
All `.black--key` elements should be within your `.keys` element.
```js
const keys = document.querySelector('.keys');
assert(keys?.querySelectorAll('.black--key')?.length === 15);
```
# --seed--
## --seed-contents--
```html
Piano
--fcc-editable-region--
--fcc-editable-region--
```
```css
```