---
id: 60b69a66b6ddb80858c515a9
title: Step 52
challengeType: 0
dashedName: step-52
---
# --description--
Select the `blue-left` element with an `id` selector. Give it a `width` of `500px` and a `height` of `300px`.
# --hints--
You should have a `#blue-left` selector.
```js
assert(new __helpers.CSSHelp(document).getStyle('#blue-left'));
```
Your `#blue-left` selector should have a `width` property set to `500px`.
```js
assert(new __helpers.CSSHelp(document).getStyle('#blue-left')?.width === '500px');
```
Your `#blue-left` selector should have a `height` property set to `300px`.
```js
assert(new __helpers.CSSHelp(document).getStyle('#blue-left')?.height === '300px');
```
# --seed--
## --seed-contents--
```html