--- layout: docs title: Navbar description: Documentation and examples for Bootstrap's powerful, responsive navigation header, the navbar. Includes support for branding, navigation, and more, including support for our collapse plugin. group: components toc: true --- ## How it works Here's what you need to know before getting started with the navbar: - Navbars require a wrapping `.navbar` with `.navbar-expand{-sm|-md|-lg|-xl}` for responsive collapsing and [color scheme](#color-schemes) classes. - Navbars and their contents are fluid by default. Use [optional containers](#containers) to limit their horizontal width. - Use our [spacing]({{ site.baseurl }}/docs/{{ site.docs_version }}/utilities/spacing/) and [flex]({{ site.baseurl }}/docs/{{ site.docs_version }}/utilities/flex/) utility classes for controlling spacing and alignment within navbars. - Navbars are responsive by default, but you can easily modify them to change that. Responsive behavior depends on our Collapse JavaScript plugin. - Navbars are hidden by default when printing. Force them to be printed by adding `.d-print` to the `.navbar`. See the [display]({{ site.baseurl }}/docs/{{ site.docs_version }}/utilities/display/) utility class. - Ensure accessibility by using a `

` element or, if using a more generic element such as a `

`, add a `role="navigation"` to every navbar to explicitly identify it as a landmark region for users of assistive technologies. {% include callout-info-prefersreducedmotion.md %} Read on for an example and list of supported sub-components. ## Supported content Navbars come with built-in support for a handful of sub-components. Choose from the following as needed: - `.navbar-brand` for your company, product, or project name. - `.navbar-nav` for a full-height and lightweight navigation (including support for dropdowns). - `.navbar-toggler` for use with our collapse plugin and other [navigation toggling](#responsive-behaviors) behaviors. - `.form-inline` for any form controls and actions. - `.navbar-text` for adding vertically centered strings of text. - `.collapse.navbar-collapse` for grouping and hiding navbar contents by a parent breakpoint. Here's an example of all the sub-components included in a responsive light-themed navbar that automatically collapses at the `lg` (large) breakpoint. {% capture example %} {% endcapture %} {% include example.html content=example %} This example uses [color]({{ site.baseurl }}/docs/{{ site.docs_version }}/utilities/colors/) (`bg-light`) and [spacing]({{ site.baseurl }}/docs/{{ site.docs_version }}/utilities/spacing/) (`my-2`, `my-lg-0`, `mr-sm-0`, `my-sm-0`) utility classes. ### Brand The `.navbar-brand` can be applied to most elements, but an anchor works best as some elements might require utility classes or custom styles. {% capture example %} {% endcapture %} {% include example.html content=example %} Adding images to the `.navbar-brand` will likely always require custom styles or utilities to properly size. Here are some examples to demonstrate. {% capture example %} {% endcapture %} {% include example.html content=example %} {% capture example %} {% endcapture %} {% include example.html content=example %} ### Nav Navbar navigation links build on our `.nav` options with their own modifier class and require the use of [toggler classes](#toggler) for proper responsive styling. **Navigation in navbars will also grow to occupy as much horizontal space as possible** to keep your navbar contents securely aligned. Active states—with `.active`—to indicate the current page can be applied directly to `.nav-link`s or their immediate parent `.nav-item`s. {% capture example %} {% endcapture %} {% include example.html content=example %} And because we use classes for our navs, you can avoid the list-based approach entirely if you like. {% capture example %} {% endcapture %} {% include example.html content=example %} You may also utilize dropdowns in your navbar nav. Dropdown menus require a wrapping element for positioning, so be sure to use separate and nested elements for `.nav-item` and `.nav-link` as shown below. {% capture example %} {% endcapture %} {% include example.html content=example %} ### Forms Place various form controls and components within a navbar with `.form-inline`. {% capture example %} {% endcapture %} {% include example.html content=example %} Immediate children elements in `.navbar` use flex layout and will default to `justify-content: between`. Use additional [flex utilities]({{ site.baseurl }}/docs/{{ site.docs_version }}/utilities/flex/) as needed to adjust this behavior. {% capture example %} {% endcapture %} {% include example.html content=example %} Input groups work, too: {% capture example %} {% endcapture %} {% include example.html content=example %} Various buttons are supported as part of these navbar forms, too. This is also a great reminder that vertical alignment utilities can be used to align different sized elements. {% capture example %} {% endcapture %} {% include example.html content=example %} ### Text Navbars may contain bits of text with the help of `.navbar-text`. This class adjusts vertical alignment and horizontal spacing for strings of text. {% capture example %} {% endcapture %} {% include example.html content=example %} Mix and match with other components and utilities as needed. {% capture example %} {% endcapture %} {% include example.html content=example %} ## Color schemes Theming the navbar has never been easier thanks to the combination of theming classes and `background-color` utilities. Choose from `.navbar-light` for use with light background colors, or `.navbar-dark` for dark background colors. Then, customize with `.bg-*` utilities.

{% highlight html %} {% endhighlight %} ## 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 a [fixed or static top navbar](#placement). {% capture example %}

{% endcapture %} {% include example.html content=example %} When the container is within your navbar, its horizontal padding is removed at breakpoints lower than your specified `.navbar-expand{-sm|-md|-lg|-xl}` class. This ensures we're not doubling up on padding unnecessarily on lower viewports when your navbar is collapsed. {% capture example %} {% endcapture %} {% include example.html content=example %} ## Placement Use our [position utilities]({{ site.baseurl }}/docs/{{ site.docs_version }}/utilities/position/) to place navbars in non-static positions. Choose from fixed to the top, fixed to the bottom, or stickied to the top (scrolls with the page until it reaches the top, then stays there). Fixed navbars use `position: fixed`, meaning they're pulled from the normal flow of the DOM and may require custom CSS (e.g., `padding-top` on the ``) to prevent overlap with other elements. Also note that **`.sticky-top` uses `position: sticky`, which [isn't fully supported in every browser](https://caniuse.com/#feat=css-sticky)**. {% capture example %} {% endcapture %} {% include example.html content=example %} {% capture example %} {% endcapture %} {% include example.html content=example %} {% capture example %} {% endcapture %} {% include example.html content=example %} {% capture example %} {% endcapture %} {% include example.html content=example %} ## Responsive behaviors Navbars can utilize `.navbar-toggler`, `.navbar-collapse`, and `.navbar-expand{-sm|-md|-lg|-xl}` classes to change when their content collapses behind a button. In combination with other utilities, you can easily choose when to show or hide particular elements. For navbars that never collapse, add the `.navbar-expand` class on the navbar. For navbars that always collapse, don't add any `.navbar-expand` class. ### Toggler Navbar togglers are left-aligned by default, but should they follow a sibling element like a `.navbar-brand`, they'll automatically be aligned to the far right. Reversing your markup will reverse the placement of the toggler. Below are examples of different toggle styles. With no `.navbar-brand` shown in lowest breakpoint: {% capture example %} {% endcapture %} {% include example.html content=example %} With a brand name shown on the left and toggler on the right: {% capture example %} {% endcapture %} {% include example.html content=example %} With a toggler on the left and brand name on the right: {% capture example %} {% endcapture %} {% include example.html content=example %} ### External content Sometimes you want to use the collapse plugin to trigger hidden content elsewhere on the page. Because our plugin works on the `id` and `data-target` matching, that's easily done! {% capture example %}

Collapsed content

Toggleable via the navbar brand.

{% endcapture %} {% include example.html content=example %}