176 lines
5.2 KiB
Markdown
176 lines
5.2 KiB
Markdown
---
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id: bad87fee1348bd9aedb08845
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title: 响应式风格的单选按钮
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challengeType: 0
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forumTopicId: 18270
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required:
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- link: >-
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https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.2.0/css/font-awesome.css
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raw: true
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dashedName: responsively-style-radio-buttons
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---
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# --description--
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你还可以将 Bootstrap 的 `col-xs-*` class 用在 `form` 元素上！这样我们就可以在不关心屏幕大小的情况下，将我们的单选按钮均匀的平铺在页面上。
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将你的所有单选按钮放入 `<div class="row">` 元素。再用 `<div class="col-xs-6">` 元素包裹每一个单选按钮。
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**记住：** 提醒一句，单选按钮是 type 为 `radio` 的 `input` 元素。
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# --hints--
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把所有的单选按钮放置于具有 `row` class 的 `div` 元素中。
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```js
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assert($('div.row:has(input[type="radio"])').length > 0);
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```
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每一个单选按钮应该嵌套于 `div` 元素之中，该 `div` 元素的 class 属性为 `col-xs-6`。
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```js
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assert($('div.col-xs-6:has(input[type="radio"])').length > 1);
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```
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确保所有 `div` 元素都有一个闭合标签。
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```js
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assert(
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code.match(/<\/div>/g) &&
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code.match(/<div/g) &&
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code.match(/<\/div>/g).length === code.match(/<div/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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<div class="row">
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<div class="col-xs-8">
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<h2 class="text-primary text-center">CatPhotoApp</h2>
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</div>
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<div class="col-xs-4">
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<a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
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</div>
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</div>
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<img src="https://bit.ly/fcc-running-cats" 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"><i class="fa fa-thumbs-up"></i> 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"><i class="fa fa-info-circle"></i> 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"><i class="fa fa-trash"></i> 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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# --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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<div class="row">
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<div class="col-xs-8">
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<h2 class="text-primary text-center">CatPhotoApp</h2>
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</div>
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<div class="col-xs-4">
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<a href="#"><img class="img-responsive thick-green-border" src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
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</div>
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</div>
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<img src="https://bit.ly/fcc-running-cats" 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"><i class="fa fa-thumbs-up"></i> 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"><i class="fa fa-info-circle"></i> 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"><i class="fa fa-trash"></i> 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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<div class="row">
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<div class="col-xs-6">
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<label><input type="radio" name="indoor-outdoor"> Indoor</label>
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</div>
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<div class="col-xs-6">
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<label><input type="radio" name="indoor-outdoor"> Outdoor</label>
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</div>
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</div>
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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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