---
id: 60fad99e09f9d30c1657e790
title: Step 39
challengeType: 0
dashedName: step-39
---
# --description--
Center the `form` element, by giving it a `margin` of `0 auto`. Then, fix its size to a maximum `width` of `500px`, and a minimum width of `300px`. In between that range, allow it to have a `width` of `60vw`.
# --hints--
You should use a `form` selector to style the `form` element.
```js
assert.exists(new __helpers.CSSHelp(document).getStyle('form'));
```
You should give the `form` a `margin` of `0 auto`.
```js
assert.equal(new __helpers.CSSHelp(document).getStyle('form')?.margin, '0px auto');
```
You should give the `form` a `max-width` of `500px`.
```js
assert.equal(new __helpers.CSSHelp(document).getStyle('form')?.maxWidth, '500px');
```
You should give the `form` a `min-width` of `300px`.
```js
assert.equal(new __helpers.CSSHelp(document).getStyle('form')?.minWidth, '300px');
```
You should give the `form` a `width` of `60vw`.
```js
assert.equal(new __helpers.CSSHelp(document).getStyle('form')?.width, '60vw');
```
# --seed--
## --seed-contents--
```html
Registration Form
Registration Form
Please fill out this form with the required information