---
id: bad87fee1348bd9aeda08845
title: Compreender caixas de seleção responsivas
challengeType: 0
forumTopicId: 18269
required:
  - 
    link: >-
      https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.2.0/css/font-awesome.css
    raw: true
dashedName: responsively-style-checkboxes
---

# --description--

Já que as classes `col-xs-*` do Bootstrap são aplicáveis a todos os elementos de `form`, você também pode usá-las nas caixas de seleções! Dessa forma, as caixas de seleções vão estar simetricamente distribuídas pela página, independente da largura da resolução da tela.

# --instructions--

Aninhe as três caixas de seleção em um elemento `<div class="row">`. Então aninhe cada uma deles no elemento `<div class="col-xs-4">`.

# --hints--

Todas as caixas de seleção devem estar aninhadas dentro de uma `div` com a classe `row`.

```js
assert($('div.row:has(input[type="checkbox"])').length > 0);
```

Cada uma das caixas de seleção devem estar aninhadas dentro da própria `div` com a classe `col-xs-4`.

```js
assert($('div.col-xs-4:has(input[type="checkbox"])').length > 2);
```

Todos os elementos `div` devem ter tags de fechamento.

```js
assert(
  code.match(/<\/div>/g) &&
    code.match(/<div/g) &&
    code.match(/<\/div>/g).length === code.match(/<div/g).length
);
```

# --seed--

## --seed-contents--

```html
<link href="https://fonts.googleapis.com/css?family=Lobster" rel="stylesheet" type="text/css">
<style>
  h2 {
    font-family: Lobster, Monospace;
  }

  .thick-green-border {
    border-color: green;
    border-width: 10px;
    border-style: solid;
    border-radius: 50%;
  }

</style>

<div class="container-fluid">
  <div class="row">
    <div class="col-xs-8">
      <h2 class="text-primary text-center">CatPhotoApp</h2>
    </div>
    <div class="col-xs-4">
      <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>
    </div>
  </div>
  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
  <div class="row">
    <div class="col-xs-4">
      <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
    </div>
    <div class="col-xs-4">
      <button class="btn btn-block btn-info"><i class="fa fa-info-circle"></i> Info</button>
    </div>
    <div class="col-xs-4">
      <button class="btn btn-block btn-danger"><i class="fa fa-trash"></i> Delete</button>
    </div>
  </div>
  <p>Things cats <span class="text-danger">love:</span></p>
  <ul>
    <li>cat nip</li>
    <li>laser pointers</li>
    <li>lasagna</li>
  </ul>
  <p>Top 3 things cats hate:</p>
  <ol>
    <li>flea treatment</li>
    <li>thunder</li>
    <li>other cats</li>
  </ol>
  <form action="https://freecatphotoapp.com/submit-cat-photo">
    <div class="row">
      <div class="col-xs-6">
        <label><input type="radio" name="indoor-outdoor"> Indoor</label>
      </div>
      <div class="col-xs-6">
        <label><input type="radio" name="indoor-outdoor"> Outdoor</label>
      </div>
    </div>
    <label><input type="checkbox" name="personality"> Loving</label>
    <label><input type="checkbox" name="personality"> Lazy</label>
    <label><input type="checkbox" name="personality"> Crazy</label>
    <input type="text" placeholder="cat photo URL" required>
    <button type="submit">Submit</button>
  </form>
</div>
```

# --solutions--

```html
<link href="https://fonts.googleapis.com/css?family=Lobster" rel="stylesheet" type="text/css">
<style>
  h2 {
    font-family: Lobster, Monospace;
  }

  .thick-green-border {
    border-color: green;
    border-width: 10px;
    border-style: solid;
    border-radius: 50%;
  }

</style>

<div class="container-fluid">
  <div class="row">
    <div class="col-xs-8">
      <h2 class="text-primary text-center">CatPhotoApp</h2>
    </div>
    <div class="col-xs-4">
      <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>
    </div>
  </div>
  <img src="https://cdn.freecodecamp.org/curriculum/cat-photo-app/running-cats.jpg" class="img-responsive" alt="Three kittens running towards the camera.">
  <div class="row">
    <div class="col-xs-4">
      <button class="btn btn-block btn-primary"><i class="fa fa-thumbs-up"></i> Like</button>
    </div>
    <div class="col-xs-4">
      <button class="btn btn-block btn-info"><i class="fa fa-info-circle"></i> Info</button>
    </div>
    <div class="col-xs-4">
      <button class="btn btn-block btn-danger"><i class="fa fa-trash"></i> Delete</button>
    </div>
  </div>
  <p>Things cats <span class="text-danger">love:</span></p>
  <ul>
    <li>cat nip</li>
    <li>laser pointers</li>
    <li>lasagna</li>
  </ul>
  <p>Top 3 things cats hate:</p>
  <ol>
    <li>flea treatment</li>
    <li>thunder</li>
    <li>other cats</li>
  </ol>
  <form action="https://freecatphotoapp.com/submit-cat-photo">
    <div class="row">
      <div class="col-xs-6">
        <label><input type="radio" name="indoor-outdoor"> Indoor</label>
      </div>
      <div class="col-xs-6">
        <label><input type="radio" name="indoor-outdoor"> Outdoor</label>
      </div>
    </div>
    <div class="row">
      <div class="col-xs-4">
        <label><input type="checkbox" name="personality"> Loving</label>   
      </div>
      <div class="col-xs-4">
         <label><input type="checkbox" name="personality"> Lazy</label>
      </div>
      <div class="col-xs-4">
         <label><input type="checkbox" name="personality"> Crazy</label>
      </div>
    </div>
    <input type="text" placeholder="cat photo URL" required>
    <button type="submit">Submit</button>
  </form>
</div>
```