layout: docs title: Carousel description: A slideshow component for cycling through elements—images or slides of text—like a carousel. group: components toc: true

How it works

The carousel is a slideshow for cycling through a series of content, built with CSS 3D transforms and a bit of JavaScript. It works with a series of images, text, or custom markup. It also includes support for previous/next controls and indicators.

In browsers where the Page Visibility API is supported, the carousel will avoid sliding when the webpage is not visible to the user (such as when the browser tab is inactive, the browser window is minimized, etc.).

Please be aware that nested carousels are not supported, and carousels are generally not compliant with accessibility standards.

Lastly, if you're building our JavaScript from source, it [requires util.js]({{ site.baseurl }}/docs/{{ site.docs_version }}/getting-started/javascript/#util).


Carousels don‘t automatically normalize slide dimensions. As such, you may need to use additional utilities or custom styles to appropriately size content. While carousels support previous/next controls and indicators, they’re not explicitly required. Add and customize as you see fit.

The .active class needs to be added to one of the slides otherwise the carousel will not be visible. Also be sure to set a unique id on the .carousel for optional controls, especially if you're using multiple carousels on a single page. Control and indicator elements must have a data-target attribute (or href for links) that matches the id of the .carousel element.

Slides only

Here's a carousel with slides only. Note the presence of the .d-block and .w-100 on carousel images to prevent browser default image alignment.

{% capture example %}

With controls

Adding in the previous and next controls:

{% capture example %}

With indicators

You can also add the indicators to the carousel, alongside the controls, too.

{% capture example %}

With captions

Add captions to your slides easily with the .carousel-caption element within any .carousel-item. They can be easily hidden on smaller viewports, as shown below, with optional [display utilities]({{ site.baseurl }}/docs/{{ site.docs_version }}/utilities/display/). We hide them initially with .d-none and bring them back on medium-sized devices with .d-md-block.

{% highlight html %}


Add .carousel-fade to your carousel to animate slides with a fade transition instead of a slide.

{% capture example %}


Via data attributes

Use data attributes to easily control the position of the carousel. data-slide accepts the keywords prev or next, which alters the slide position relative to its current position. Alternatively, use data-slide-to to pass a raw slide index to the carousel data-slide-to="2", which shifts the slide position to a particular index beginning with 0.

The data-ride="carousel" attribute is used to mark a carousel as animating starting at page load. It cannot be used in combination with (redundant and unnecessary) explicit JavaScript initialization of the same carousel.

Via JavaScript

Call carousel manually with:

{% highlight js %} $(‘.carousel’).carousel() {% endhighlight %}


Options can be passed via data attributes or JavaScript. For data attributes, append the option name to data-, as in data-interval="".


{% include %}


Initializes the carousel with an optional options object and starts cycling through items.

{% highlight js %} $(‘.carousel’).carousel({ interval: 2000 }) {% endhighlight %}


Cycles through the carousel items from left to right.


Stops the carousel from cycling through items.


Cycles the carousel to a particular frame (0 based, similar to an array). Returns to the caller before the target item has been shown (i.e. before the event occurs).


Cycles to the previous item. Returns to the caller before the previous item has been shown (i.e. before the event occurs).


Cycles to the next item. Returns to the caller before the next item has been shown (i.e. before the event occurs).


Destroys an element's carousel.


Bootstrap's carousel class exposes two events for hooking into carousel functionality. Both events have the following additional properties:

  • direction: The direction in which the carousel is sliding (either "left" or "right").
  • relatedTarget: The DOM element that is being slid into place as the active item.
  • from: The index of the current item
  • to: The index of the next item

All carousel events are fired at the carousel itself (i.e. at the <div class="carousel">).

{% highlight js %} $(‘#myCarousel’).on(‘’, function () { // do something… }) {% endhighlight %}

Change transition duration

The transition duration of .carousel-item can be changed with the $carousel-transition Sass variable before compiling or custom styles if you're using the compiled CSS. If multiple transitions are applied, make sure the transform transition is defined first (eg. transition: transform 2s ease, opacity .5s ease-out).