freeCodeCamp/guide/chinese/certifications/front-end-libraries/bootstrap/add-id-attributes-to-bootst.../index.md

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---
title: Add id Attributes to Bootstrap Elements
localeTitle: 将id属性添加到Bootstrap元素
---
## 将id属性添加到Bootstrap元素
最后一个挑战是你在按钮元素中添加了一个类这次你必须将id添加到具有良好类的div中。
### 提示1
id声明如下
```html
<element id="id(s)List"></element>
```
### 提示2
编辑具有良好类的div标签
### 提示3
对两个孔使用不同的id。
### 提示4
`left-well` ,井`right-well` 。
### 解
由于您必须向两个井添加id并且两者都具有唯一ID因此以下是解决方案
```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" id="left-well">
<button class="btn btn-default target"></button>
<button class="btn btn-default target"></button>
<button class="btn btn-default target"></button>
</div>
</div>
<div class="col-xs-6">
<div class="well" id="right-well">
<button class="btn btn-default target"></button>
<button class="btn btn-default target"></button>
<button class="btn btn-default target"></button>
</div>
</div>
</div>
</div>
```