freeCodeCamp/curriculum/challenges/italian/14-responsive-web-design-22/learn-css-flexbox-by-buildi.../6153897c27f6334716ee5abe.md

91 lines
2.3 KiB
Markdown

---
id: 6153897c27f6334716ee5abe
title: Step 10
challengeType: 0
dashedName: step-10
---
# --description--
Allinea il testo dell'elemento `.header` al centro, assegnagli un padding di `32px` su tutti i lati e imposta lo sfondo su `#E0DDDD`.
# --hints--
Dovresti avere un selettore `.header`.
```js
assert.exists(new __helpers.CSSHelp(document).getStyle('.header'));
```
Il selettore `.header` dovrebbe avere una proprietà `text-align` con il valore `center`.
```js
assert(new __helpers.CSSHelp(document).getStyle('.header')?.textAlign === 'center');
```
Il selettore `.header` dovrebbe avere una proprietà `padding` con il valore `32px`.
```js
assert(new __helpers.CSSHelp(document).getStyle('.header')?.padding === '32px');
```
Il selettore `.header` dovrebbe avere una proprietà `background-color` con il valore `#E0DDDD`.
```js
assert(new __helpers.CSSHelp(document).getStyle('.header')?.backgroundColor === 'rgb(224, 221, 221)');
```
# --seed--
## --seed-contents--
```html
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Photo Gallery</title>
<link rel="stylesheet" href="./styles.css">
</head>
<body>
<div class="header">
<h1>CSS FLEXBOX PHOTO GALLERY</h1>
</div>
<div id="gallery">
<img src="https://cdn.freecodecamp.org/curriculum/css-photo-gallery/1.jpg"/>
<img src="https://cdn.freecodecamp.org/curriculum/css-photo-gallery/2.jpg"/>
<img src="https://cdn.freecodecamp.org/curriculum/css-photo-gallery/3.jpg"/>
<img src="https://cdn.freecodecamp.org/curriculum/css-photo-gallery/4.jpg"/>
<img src="https://cdn.freecodecamp.org/curriculum/css-photo-gallery/5.jpg"/>
<img src="https://cdn.freecodecamp.org/curriculum/css-photo-gallery/6.jpg"/>
<img src="https://cdn.freecodecamp.org/curriculum/css-photo-gallery/7.jpg"/>
<img src="https://cdn.freecodecamp.org/curriculum/css-photo-gallery/8.jpg"/>
<img src="https://cdn.freecodecamp.org/curriculum/css-photo-gallery/9.jpg"/>
<img src="https://cdn.freecodecamp.org/curriculum/css-photo-gallery/10.jpg"/>
</div>
</body>
</html>
```
```css
* {
box-sizing: border-box;
}
body {
margin: 0;
font-family: Arial;
background: #EBE7E7;
}
--fcc-editable-region--
--fcc-editable-region--
#gallery img {
width: 25%;
height: 300px;
}
```