freeCodeCamp/curriculum/challenges/english/03-front-end-development-libraries/bootstrap/add-id-attributes-to-bootstrap-elements.md

---
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>
```