---
id: 60b69a66b6ddb80858c515ab
title: Step 54
challengeType: 0
dashedName: step-54
---
# --description--
Next, target your `blue-right` element with an `id` selector. Set the `width` to `400px` and the `height` to `300px`.
# --hints--
You should have a `#blue-right` selector.
```js
assert(new __helpers.CSSHelp(document).getStyle('#blue-right'));
```
Your `#blue-right` selector should have a `width` property set to `400px`.
```js
assert(new __helpers.CSSHelp(document).getStyle('#blue-right')?.width === '400px');
```
Your `#blue-right` selector should have a `height` property set to `300px`.
```js
assert(new __helpers.CSSHelp(document).getStyle('#blue-right')?.height === '300px');
```
# --seed--
## --seed-contents--
```html