2022-05-26 16:20:33 +00:00
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---
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id: 61537c5f81f0cf325b4a854c
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title: Step 4
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challengeType: 0
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dashedName: step-4
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---
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# --description--
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2022-08-02 11:46:54 +00:00
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Aggiungi un elemento `header` all'interno dell'elemento `body` e assegnagli la classe `header`.
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2022-05-26 16:20:33 +00:00
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2022-08-02 11:46:54 +00:00
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All'interno dell'`header`, crea un `h1` con il testo `css flexbox photo gallery`.
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2022-05-26 16:20:33 +00:00
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# --hints--
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Dovresti avere un elemento `div` all'interno dell'elemento `body`.
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```js
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assert.exists(document.querySelector('body')?.querySelector('header'));
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```
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2022-08-02 11:46:54 +00:00
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L'elemento `header` dovrebbe avere un attributo `class` con il valore `header`.
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2022-05-26 16:20:33 +00:00
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```js
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assert(document?.querySelector('body')?.querySelector('header')?.classList?.contains('header'));
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```
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2022-08-02 11:46:54 +00:00
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L'elemento `header` dovrebbe avere un elemento `h1` al suo interno.
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2022-05-26 16:20:33 +00:00
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```js
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assert.exists(document.querySelector('.header')?.querySelector('h1'));
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```
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2022-08-02 11:46:54 +00:00
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L'elemento `h1` dovrebbe avere il testo `css flexbox photo gallery` al suo interno.
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2022-05-26 16:20:33 +00:00
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```js
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assert(document?.querySelector('.header')?.querySelector('h1')?.innerText === 'css flexbox photo gallery');
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```
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# --seed--
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## --seed-contents--
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```html
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--fcc-editable-region--
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<!DOCTYPE html>
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<html>
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<head lang="en">
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2022-05-26 16:20:33 +00:00
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Photo Gallery</title>
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<link rel="stylesheet" href="./styles.css">
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</head>
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<body>
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</body>
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</html>
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--fcc-editable-region--
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```
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```css
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```
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