189 lines
5.1 KiB
Markdown
189 lines
5.1 KiB
Markdown
---
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id: bad87fee1347bd9aedf08845
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title: 用 Bootstrap 來取代我們之前的自定義樣式
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challengeType: 0
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forumTopicId: 17565
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dashedName: ditch-custom-css-for-bootstrap
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---
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# --description--
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現在可以清理一下之前代碼,用 Bootstrap 的內置樣式來替換之前定義的樣式,這樣 Cat Photo App 看起來更簡潔些。
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別擔心——以後會有大把時間來自定義 CSS 樣式的。
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刪除 `style` 元素裏的 `.red-text`,`p`,和 `.smaller-image` CSS 定義,使 `style` 元素只留下 `h2` 和 `thick-green-border`。
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刪除包含死鏈接的 `p` 元素。 然後將 `h2` 的 `red-text` class 替換爲 Bootstrap 的 `text-primary` class。
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最後,從第一個 `img` 元素中刪除 `smaller-image` class,並將其替換爲 `img-responsive` class。
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# --hints--
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`h2` 元素不應該有 `red-text` class。
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```js
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assert(!$('h2').hasClass('red-text'));
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```
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`h2` 元素應有 `text-primary` class。
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```js
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assert($('h2').hasClass('text-primary'));
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```
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段落元素(p)不應該再使用 `Monospace` 字體。
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```js
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assert(
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!$('p')
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.css('font-family')
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.match(/monospace/i)
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);
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```
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移除第一張圖片的 `smaller-image` class 屬性。
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```js
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assert(!$('img').hasClass('smaller-image'));
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```
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給第一張圖片添加 `img-responsive` class 屬性。
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```js
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assert($('.img-responsive').length > 1);
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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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.red-text {
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color: red;
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}
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h2 {
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font-family: Lobster, Monospace;
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}
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p {
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font-size: 16px;
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font-family: 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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.smaller-image {
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width: 100px;
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}
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</style>
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<div class="container-fluid">
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<h2 class="red-text text-center">CatPhotoApp</h2>
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<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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<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 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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