2021-05-05 10:13:49 -07:00
---
id: bad87fee1348bd9acde08712
title: 使用 Bootstrap Fluid 容器實現響應式設計
challengeType: 0
forumTopicId: 18362
dashedName: use-responsive-design-with-bootstrap-fluid-containers
---
# --description--
之前,在 freeCodeCamp 的 HTML5 和 CSS 章節中我們構建了一個 Cat Photo App。 我們在此基礎上繼續學習。 這次我們將會使用最受歡迎的響應式 CSS 框架 Bootstrap 來美化它。
Bootstrap 會根據屏幕大小來動態調整 HTML 元素的大小————因此稱爲 < dfn > Responsive Design< / dfn > (響應式設計)。
通過響應式設計,我們將無需額外設計一個手機版的網頁, 因爲它在任何尺寸的屏幕上看起來都很棒。
任何 Web 應用,都可以通過添加如下代碼到 HTML 頂部來引入 Bootstrap 。
```html
< link rel = "stylesheet" href = "https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity = "sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin = "anonymous" / >
```
不過在這裏,已經預先爲此頁面添加了上述代碼。 注意使用 `>` 或者 `/>` 兩種方式閉合 `link` 標籤都是可行的。
首先,我們應該將所有 HTML( `link` 標籤和 `style` 元素除外)嵌套在帶有 `container-fluid` class 的 `div` 元素裏面。
# --hints--
`div` 元素應該有 `container-fluid` class。
```js
assert($('div').hasClass('container-fluid'));
```
`div` 元素應該有結束標籤。
```js
assert(
code.match(/< \/div > /g) &&
code.match(/< div / g ) & &
code.match(/< \/div > /g).length === code.match(/< div / g ). length
);
```
`style` 結束標籤後面的所有 HTML 元素都應該被嵌套在 `.container-fluid` 裏面。
```js
assert($('.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 >
```