Barra de navegação

The navbar is a simple wrapper for positioning branding, navigation, and other elements into a concise navigation header. It’s easily extensible and, with the help of our collapse plugin, it can easily integrate offscreen content.

Contents

Basics

Here’s what you need to know before getting started with the navbar:

  • Navbars require a wrapping .navbar and a color scheme class (either .navbar-default or .navbar-inverse).
  • Navbars and their contents are fluid by default. Use optional containers to limit their horizontal width.
  • Use .pull-left and .pull-right to quickly align sub-components.
  • Ensure accessibility by using a <nav> element or, if using a more generic element such as a <div>, add a role="navigation" to every navbar to explicitly identify it as a landmark region for users of assistive technologies.

Supported content

Navbars come with built-in support for a handful of sub-components. Mix and match from the following as you need:

  • .navbar-brand for your company, product, or project name
  • .navbar-nav for a full-height and lightweight navigation (including support for dropdowns)
  • .navbar-form for vertically centering default-sized inputs and buttons.
  • .navbar-toggler for use with our collapse plugin and other navigation toggling behaviors.

Here’s an example of all the sub-components included in a default, light navbar:

<nav class="navbar navbar-light bg-faded">
  <a class="navbar-brand" href="#">Navbar</a>
  <ul class="nav navbar-nav">
    <li class="nav-item active">
      <a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
    </li>
    <li class="nav-item">
      <a class="nav-link" href="#">Features</a>
    </li>
    <li class="nav-item">
      <a class="nav-link" href="#">Pricing</a>
    </li>
    <li class="nav-item">
      <a class="nav-link" href="#">About</a>
    </li>
  </ul>
  <form class="form-inline navbar-form pull-right">
    <input class="form-control" type="text" placeholder="Search">
    <button class="btn btn-success-outline" type="submit">Search</button>
  </form>
</nav>

Color schemes

Theming the navbar has never been easier thanks to the combination of a simple link color modifier class and background-color utilities. Put another way, you specify light or dark and apply a background color.

Here are some examples to show what we mean.

<nav class="navbar navbar-dark bg-inverse">
    <a class="navbar-brand" href="#">Navbar</a>
    <ul class="nav navbar-nav">
      <li class="nav-item active">
        <a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">Features</a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">Pricing</a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">About</a>
      </li>
    </ul>
    <form class="form-inline navbar-form pull-right">
      <input class="form-control" type="text" placeholder="Search">
      <button class="btn btn-info-outline" type="submit">Search</button>
    </form>
  </nav>
  <nav class="navbar navbar-dark bg-primary">
    <a class="navbar-brand" href="#">Navbar</a>
    <ul class="nav navbar-nav">
      <li class="nav-item active">
        <a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">Features</a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">Pricing</a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">About</a>
      </li>
    </ul>
    <form class="form-inline navbar-form pull-right">
      <input class="form-control" type="text" placeholder="Search">
      <button class="btn btn-secondary-outline" type="submit">Search</button>
    </form>
  </nav>
  <nav class="navbar navbar-light" style="background-color: #e3f2fd;">
    <a class="navbar-brand" href="#">Navbar</a>
    <ul class="nav navbar-nav">
      <li class="nav-item active">
        <a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">Features</a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">Pricing</a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">About</a>
      </li>
    </ul>
    <form class="form-inline navbar-form pull-right">
      <input class="form-control" type="text" placeholder="Search">
      <button class="btn btn-primary-outline" type="submit">Search</button>
    </form>
  </nav>

Containers

Although it’s not required, you can wrap a navbar in a .container to center it on a page or add one within to only center the contents of the navbar.

<div class="container">
  <nav class="navbar navbar-light bg-faded">
    <a class="navbar-brand" href="#">Navbar</a>
  </nav>
</div>
<nav class="navbar navbar-light bg-faded">
  <div class="container">
    <a class="navbar-brand" href="#">Navbar</a>
  </div>
</nav>

Placement

Navbars can be statically placed (their default behavior), static without rounded corners, or fixed to the top or bottom of the viewport.

<nav class="navbar navbar-full navbar-light bg-faded">
  <a class="navbar-brand" href="#">Full width</a>
</nav>
<nav class="navbar navbar-fixed-top navbar-light bg-faded">
  <a class="navbar-brand" href="#">Fixed top</a>
</nav>
<nav class="navbar navbar-fixed-bottom navbar-light bg-faded">
  <a class="navbar-brand" href="#">Fixed bottom</a>
</nav>

Collapsible content

Our collapse plugin allows you to use a <button> or <a> to toggle hidden content.

Collapsed content

Toggleable via the navbar brand.
<div class="collapse" id="exCollapsingNavbar">
  <div class="bg-inverse p-a">
    <h4>Collapsed content</h4>
    <span class="text-muted">Toggleable via the navbar brand.</span>
  </div>
</div>
<nav class="navbar navbar-light bg-faded">
  <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#exCollapsingNavbar">
    &#9776;
  </button>
</nav>

For more complex navbar patterns, like those used in Bootstrap v3, use the .navbar-toggleable-* classes in conjunction with the .navbar-toggler. These classes override our responsive utilities to show navigation only when content is meant to be shown.

<nav class="navbar navbar-light bg-faded">
  <button class="navbar-toggler hidden-sm-up" type="button" data-toggle="collapse" data-target="#exCollapsingNavbar2">
    &#9776;
  </button>
  <div class="collapse navbar-toggleable-xs" id="exCollapsingNavbar2">
    <a class="navbar-brand" href="#">Responsive navbar</a>
    <ul class="nav navbar-nav">
      <li class="nav-item active">
        <a class="nav-link" href="#">Home <span class="sr-only">(current)</span></a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">Features</a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">Pricing</a>
      </li>
      <li class="nav-item">
        <a class="nav-link" href="#">About</a>
      </li>
    </ul>
  </div>
</nav>