186 lines
5.5 KiB
Markdown
186 lines
5.5 KiB
Markdown
---
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id: bad87fee1348bd9aedf08845
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title: Usare un intervallo per selezionare gli elementi in linea
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challengeType: 0
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forumTopicId: 18370
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dashedName: use-a-span-to-target-inline-elements
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---
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# --description--
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È possibile utilizzare gli intervalli (span) per creare degli elementi in linea. Ricordi quando abbiamo usato la classe `btn-block` per fare in modo che il bottone riempisse l'intera riga?
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<button class='btn' style='background-color: rgb(0, 100, 0); color: rgb(255, 255, 255);'>bottone normale</button>
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<button class='btn btn-block' style='background-color: rgb(0, 100, 0); color: rgb(255, 255, 255);'>bottone btn-block</button>
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Questo mostra la differenza tra un elemento "inline" e un elemento "block".
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Utilizzando l'elemento inline `span`, puoi inserire diversi elementi sulla stessa linea, e anche stilizzare diverse parti della stessa linea in modo diverso.
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Usando un elemento `span`, annida la parola `love` all'interno dell'elemento `p` che al momento ha il testo `Things cats love`. Quindi dai allo `span` la classe `text-danger` per rendere il testo rosso.
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Ecco come faresti questo per l'elemento `p` che ha il testo `Top 3 things cats hate`:
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```html
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<p>Top 3 things cats <span class="text-danger">hate:</span></p>
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```
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# --hints--
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Il tuo elemento `span` dovrebbe essere all'interno dell'elemento `p`.
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```js
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assert($('p span') && $('p span').length > 0);
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```
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Il tuo elemento `span` dovrebbe avere solo il testo `love`.
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```js
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assert(
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$('p span') &&
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$('p span').text().match(/love/i) &&
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!$('p span')
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.text()
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.match(/Things cats/i)
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);
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```
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Il tuo elemento `span` dovrebbe essere di classe `text-danger`.
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```js
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assert($('span').hasClass('text-danger'));
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```
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Il tuo elemento `span` dovrebbe avere un tag di chiusura.
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```js
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assert(
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code.match(/<\/span>/g) &&
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code.match(/<span/g) &&
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code.match(/<\/span>/g).length === code.match(/<span/g).length
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);
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```
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# --seed--
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## --seed-contents--
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```html
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<link href="https://fonts.googleapis.com/css?family=Lobster" rel="stylesheet" type="text/css">
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<style>
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h2 {
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font-family: Lobster, Monospace;
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}
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.thick-green-border {
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border-color: green;
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border-width: 10px;
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border-style: solid;
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border-radius: 50%;
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}
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</style>
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<div class="container-fluid">
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<h2 class="text-primary text-center">CatPhotoApp</h2>
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<a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
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<img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
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<div class="row">
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<div class="col-xs-4">
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<button class="btn btn-block btn-primary">Like</button>
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</div>
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<div class="col-xs-4">
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<button class="btn btn-block btn-info">Info</button>
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</div>
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<div class="col-xs-4">
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<button class="btn btn-block btn-danger">Delete</button>
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</div>
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</div>
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<p>Things cats love:</p>
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<ul>
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<li>cat nip</li>
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<li>laser pointers</li>
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<li>lasagna</li>
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</ul>
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<p>Top 3 things cats hate:</p>
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<ol>
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<li>flea treatment</li>
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<li>thunder</li>
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<li>other cats</li>
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</ol>
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<form action="https://freecatphotoapp.com/submit-cat-photo">
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<label><input type="radio" name="indoor-outdoor"> Indoor</label>
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<label><input type="radio" name="indoor-outdoor"> Outdoor</label>
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<label><input type="checkbox" name="personality"> Loving</label>
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<label><input type="checkbox" name="personality"> Lazy</label>
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<label><input type="checkbox" name="personality"> Crazy</label>
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<input type="text" placeholder="cat photo URL" required>
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<button type="submit">Submit</button>
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</form>
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</div>
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```
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# --solutions--
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```html
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<link href="https://fonts.googleapis.com/css?family=Lobster" rel="stylesheet" type="text/css">
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<style>
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h2 {
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font-family: Lobster, Monospace;
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}
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.thick-green-border {
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border-color: green;
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border-width: 10px;
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border-style: solid;
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border-radius: 50%;
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}
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</style>
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<div class="container-fluid">
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<h2 class="text-primary text-center">CatPhotoApp</h2>
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<a href="#"><img class="img-responsive thick-green-border" src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/relaxing-cat.jpg" alt="A cute orange cat lying on its back."></a>
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<img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
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<div class="row">
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<div class="col-xs-4">
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<button class="btn btn-block btn-primary">Like</button>
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</div>
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<div class="col-xs-4">
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<button class="btn btn-block btn-info">Info</button>
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</div>
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<div class="col-xs-4">
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<button class="btn btn-block btn-danger">Delete</button>
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</div>
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</div>
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<p>Things cats <span class="text-danger">love</span>:</p>
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<ul>
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<li>cat nip</li>
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<li>laser pointers</li>
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<li>lasagna</li>
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</ul>
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<p>Top 3 things cats hate:</p>
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<ol>
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<li>flea treatment</li>
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<li>thunder</li>
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<li>other cats</li>
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</ol>
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<form action="https://freecatphotoapp.com/submit-cat-photo">
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<label><input type="radio" name="indoor-outdoor"> Indoor</label>
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<label><input type="radio" name="indoor-outdoor"> Outdoor</label>
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<label><input type="checkbox" name="personality"> Loving</label>
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<label><input type="checkbox" name="personality"> Lazy</label>
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<label><input type="checkbox" name="personality"> Crazy</label>
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<input type="text" placeholder="cat photo URL" required>
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<button type="submit">Submit</button>
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</form>
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</div>
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```
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