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---
id: bad87fee1348bd9acde08712
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title: Usar design responsivo com contêineres fluidos do Bootstrap
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challengeType: 0
forumTopicId: 18362
dashedName: use-responsive-design-with-bootstrap-fluid-containers
---
# --description--
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Na seção do HTML5 e CSS do freeCodeCamp nós construímos uma aplicação de Fotos de Gatos. Agora vamos voltar para ela. Dessa vez, nós estilizaremos usando o framework de CSS responsivo popular conhecido como Bootstrap.
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O Bootstrap descobrirá a largura da tela e responderá redimensionando os elementos do HTML - daí o nome < dfn > design responsivo< / dfn > .
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Com um design responsivo, não há necessidade de projetar uma versão móvel do seu site. Ele terá uma boa aparência em dispositivos com telas de qualquer largura.
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Você pode incluir o Bootstrap em qualquer aplicativo, adicionando o seguinte código ao topo do HTML:
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```html
< link rel = "stylesheet" href = "https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity = "sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin = "anonymous" / >
```
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Neste caso, já o adicionamos para você a esta página por trás dos panos. Note que usar a tag `>` ou `/>` para fechar a tag `link` é aceitável.
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Para começar, devemos aninhar todo o HTML (exceto a tag `link` e o elemento `style` ) em um elemento `div` com a classe `container-fluid` .
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# --hints--
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O elemento `div` deve ter a classe `container-fluid` .
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```js
assert($('div').hasClass('container-fluid'));
```
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O elemento `div` deve ter uma tag de fechamento.
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```js
assert(
code.match(/< \/div > /g) &&
code.match(/< div / g ) & &
code.match(/< \/div > /g).length === code.match(/< div / g ). length
);
```
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Todos os elementos HTML após a tag de fechamento `style` devem estar aninhados dentro de `.container-fluid` .
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```js
assert($('.container-fluid').children().length >= 8 & & !$('.container-fluid').has("style").length & & !$('.container-fluid').has("link").length);
```
# --seed--
## --seed-contents--
```html
< link href = "https://fonts.googleapis.com/css?family=Lobster" rel = "stylesheet" type = "text/css" >
< style >
.red-text {
color: red;
}
h2 {
font-family: Lobster, Monospace;
}
p {
font-size: 16px;
font-family: Monospace;
}
.thick-green-border {
border-color: green;
border-width: 10px;
border-style: solid;
border-radius: 50%;
}
.smaller-image {
width: 100px;
}
< / style >
< h2 class = "red-text" > CatPhotoApp< / h2 >
< p > Click here for < a href = "#" > cat photos< / a > .< / p >
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< a href = "#" > < img class = "smaller-image 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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< p > Things cats love:< / 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" >
< label > < input type = "radio" name = "indoor-outdoor" > Indoor< / label >
< label > < input type = "radio" name = "indoor-outdoor" > Outdoor< / label >
< 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 >
```
# --solutions--
```html
< link href = "https://fonts.googleapis.com/css?family=Lobster" rel = "stylesheet" type = "text/css" >
< style >
.red-text {
color: red;
}
h2 {
font-family: Lobster, Monospace;
}
p {
font-size: 16px;
font-family: Monospace;
}
.thick-green-border {
border-color: green;
border-width: 10px;
border-style: solid;
border-radius: 50%;
}
.smaller-image {
width: 100px;
}
< / style >
< div class = "container-fluid" >
< h2 class = "red-text" > CatPhotoApp< / h2 >
< p > Click here for < a href = "#" > cat photos< / a > .< / p >
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< a href = "#" > < img class = "smaller-image 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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< p > Things cats love:< / 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" >
< label > < input type = "radio" name = "indoor-outdoor" > Indoor< / label >
< label > < input type = "radio" name = "indoor-outdoor" > Outdoor< / label >
< 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 >
```