Files
freeCodeCamp/curriculum/challenges/chinese/03-front-end-libraries/bootstrap/apply-the-default-bootstrap-button-style.md
2021-03-04 19:55:32 -07:00

78 lines
1.6 KiB
Markdown
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

---
id: bad87fee1348bd9aec908850
title: 给 Bootstrap 按钮添加默认样式
challengeType: 0
forumTopicId: 16657
dashedName: apply-the-default-bootstrap-button-style
---
# --description--
Bootstrap 还有另外一种按钮 class 属性叫做 `btn-default`
为所有的 `button` 元素增加两个 class `btn``btn-default`
# --hints--
应该将 `btn` class 添加到所有的 `button` 元素中。
```js
assert($('.btn').length > 5);
```
应该将 `btn-default` class 添加到每一个 `button` 元素中。
```js
assert($('.btn-default').length > 5);
```
# --seed--
## --seed-contents--
```html
<div class="container-fluid">
<h3 class="text-primary text-center">jQuery Playground</h3>
<div class="row">
<div class="col-xs-6">
<div class="well">
<button></button>
<button></button>
<button></button>
</div>
</div>
<div class="col-xs-6">
<div class="well">
<button></button>
<button></button>
<button></button>
</div>
</div>
</div>
</div>
```
# --solutions--
```html
<div class="container-fluid">
<h3 class="text-primary text-center">jQuery Playground</h3>
<div class="row">
<div class="col-xs-6">
<div class="well">
<button class="btn btn-default"></button>
<button class="btn btn-default"></button>
<button class="btn btn-default"></button>
</div>
</div>
<div class="col-xs-6">
<div class="well">
<button class="btn btn-default"></button>
<button class="btn btn-default"></button>
<button class="btn btn-default"></button>
</div>
</div>
</div>
</div>
```