freeCodeCamp/curriculum/challenges/english/03-front-end-development-li.../bootstrap/add-id-attributes-to-bootst...

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---
id: bad87fee1348bd9aec908853
title: Add id Attributes to Bootstrap Elements
challengeType: 0
forumTopicId: 16639
dashedName: add-id-attributes-to-bootstrap-elements
---
# --description--
Recall that in addition to class attributes, you can give each of your elements an `id` attribute.
Each id must be unique to a specific element and used only once per page.
Let's give a unique id to each of our `div` elements of class `well`.
Remember that you can give an element an id like this:
```html
<div class="well" id="center-well">
```
Give the well on the left the id of `left-well`. Give the well on the right the id of `right-well`.
# --hints--
Your left `well` should have the id of `left-well`.
```js
assert(
$('.col-xs-6').children('#left-well') &&
$('.col-xs-6').children('#left-well').length > 0
);
```
Your right `well` should have the id of `right-well`.
```js
assert(
$('.col-xs-6').children('#right-well') &&
$('.col-xs-6').children('#right-well').length > 0
);
```
# --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 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">
<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>
```
# --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" 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>
```