Bootstrap carousel

Bootstrap carousel is a slideshow component for cycling through elements—images or slides of text—like a carousel.

Other frameworks

CoreUI components are available as native Angular, React, and Vue components. To learn more please visit the following pages.

On this page

How it works

The bootstrap carousel is a slideshow for cycling within a group of content, built with CSS 3D transforms and JavaScript. It runs with a group of images, text, or html elements. It also incorporates support for previous/next buttons.

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.).

The animation effect of this component is dependent on the prefers-reduced-motion media query. See the reduced motion section of our accessibility documentation.

Please be informed that nested carousels are not supported, and carousels are frequently not compliant with accessibility rules.

Example

Carousels don’t automatically normalize slide dimensions. As such, you may want to use extra utilities or custom methods to properly size content. While carousels support previous/next controls and indicators, they’re not explicitly expected. Add and customize as you see fit.

The .active class must to be attached to one of the slides otherwise the carousel will not be visible. Additionally be sure to set a different id on the .carousel for optional controls, particularly if you’re using many carousels on a page. Control and indicator elements must have a data-coreui-target attribute (or href for links) that matches the id of the .carousel element.

Slides only

Here’s a carousel with slides. Note the appearance of the .d-block also, .w-100 on carousel images to override browser default image alignment.

html

<div id="carouselExampleSlidesOnly" class="carousel slide" data-coreui-ride="carousel">
  <div class="carousel-inner">
    <div class="carousel-item active">
      <img src="..." class="d-block w-100" alt="...">

    </div>
    <div class="carousel-item">
      <img src="..." class="d-block w-100" alt="...">

    </div>
    <div class="carousel-item">
      <img src="..." class="d-block w-100" alt="...">

    </div>
  </div>
</div>

With controls

Adding in the previous and next controls. We recommend using <button> elements, but you can also use <a> elements with role="button".

html

<div id="carouselExampleControls" class="carousel slide" data-coreui-ride="carousel">
  <div class="carousel-inner">
    <div class="carousel-item active">
      <img src="..." class="d-block w-100" alt="...">

    </div>
    <div class="carousel-item">
      <img src="..." class="d-block w-100" alt="...">

    </div>
    <div class="carousel-item">
      <img src="..." class="d-block w-100" alt="...">

    </div>
  </div>
  <button class="carousel-control-prev" type="button" data-coreui-target="#carouselExampleControls" data-coreui-slide="prev">
    <span class="carousel-control-prev-icon" aria-hidden="true"></span>
    <span class="visually-hidden">Previous</span>
  </button>
  <button class="carousel-control-next" type="button" data-coreui-target="#carouselExampleControls" data-coreui-slide="next">
    <span class="carousel-control-next-icon" aria-hidden="true"></span>
    <span class="visually-hidden">Next</span>
  </button>
</div>

With indicators

You can attach the indicators to the carousel, lengthwise the controls, too.

html

<div id="carouselExampleIndicators" class="carousel slide" data-coreui-ride="true">
  <div class="carousel-indicators">
    <button type="button" data-coreui-target="#carouselExampleIndicators" data-coreui-slide-to="0" class="active" aria-current="true" aria-label="Slide 1"></button>
    <button type="button" data-coreui-target="#carouselExampleIndicators" data-coreui-slide-to="1" aria-label="Slide 2"></button>
    <button type="button" data-coreui-target="#carouselExampleIndicators" data-coreui-slide-to="2" aria-label="Slide 3"></button>
  </div>
  <div class="carousel-inner">
    <div class="carousel-item active">
      <img src="..." class="d-block w-100" alt="...">

    </div>
    <div class="carousel-item">
      <img src="..." class="d-block w-100" alt="...">

    </div>
    <div class="carousel-item">
      <img src="..." class="d-block w-100" alt="...">

    </div>
  </div>
  <button class="carousel-control-prev" type="button" data-coreui-target="#carouselExampleIndicators" data-coreui-slide="prev">
    <span class="carousel-control-prev-icon" aria-hidden="true"></span>
    <span class="visually-hidden">Previous</span>
  </button>
  <button class="carousel-control-next" type="button" data-coreui-target="#carouselExampleIndicators" data-coreui-slide="next">
    <span class="carousel-control-next-icon" aria-hidden="true"></span>
    <span class="visually-hidden">Next</span>
  </button>
</div>

With captions

You can add captions to slides with the .carousel-caption element within any .carousel-item. They can be immediately hidden on smaller viewports, as shown below, with optional display utilities. We hide them with .d-none and draw them back on medium-sized devices with .d-md-block.

First slide label

Some representative placeholder content for the first slide.

Second slide label

Some representative placeholder content for the second slide.

Third slide label

Some representative placeholder content for the third slide.

html

<div id="carouselExampleCaptions" class="carousel slide" data-coreui-ride="false">
  <div class="carousel-indicators">
    <button type="button" data-coreui-target="#carouselExampleCaptions" data-coreui-slide-to="0" class="active" aria-current="true" aria-label="Slide 1"></button>
    <button type="button" data-coreui-target="#carouselExampleCaptions" data-coreui-slide-to="1" aria-label="Slide 2"></button>
    <button type="button" data-coreui-target="#carouselExampleCaptions" data-coreui-slide-to="2" aria-label="Slide 3"></button>
  </div>
  <div class="carousel-inner">
    <div class="carousel-item active">
      <img src="..." class="d-block w-100" alt="...">

      <div class="carousel-caption d-none d-md-block">
        <h5>First slide label</h5>
        <p>Some representative placeholder content for the first slide.</p>
      </div>
    </div>
    <div class="carousel-item">
      <img src="..." class="d-block w-100" alt="...">

      <div class="carousel-caption d-none d-md-block">
        <h5>Second slide label</h5>
        <p>Some representative placeholder content for the second slide.</p>
      </div>
    </div>
    <div class="carousel-item">
      <img src="..." class="d-block w-100" alt="...">

      <div class="carousel-caption d-none d-md-block">
        <h5>Third slide label</h5>
        <p>Some representative placeholder content for the third slide.</p>
      </div>
    </div>
  </div>
  <button class="carousel-control-prev" type="button" data-coreui-target="#carouselExampleCaptions" data-coreui-slide="prev">
    <span class="carousel-control-prev-icon" aria-hidden="true"></span>
    <span class="visually-hidden">Previous</span>
  </button>
  <button class="carousel-control-next" type="button" data-coreui-target="#carouselExampleCaptions" data-coreui-slide="next">
    <span class="carousel-control-next-icon" aria-hidden="true"></span>
    <span class="visually-hidden">Next</span>
  </button>
</div>

Crossfade

Add .carousel-fade to your carousel to animate slides with a fade transition instead of a slide. Depending on your carousel content (e.g., text only slides), you may want to add .bg-body or some custom CSS to the .carousel-items for proper crossfading.

html

<div id="carouselExampleFade" class="carousel slide carousel-fade" data-coreui-ride="carousel">
  <div class="carousel-inner">
    <div class="carousel-item active">
      <img src="..." class="d-block w-100" alt="...">

    </div>
    <div class="carousel-item">
      <img src="..." class="d-block w-100" alt="...">

    </div>
    <div class="carousel-item">
      <img src="..." class="d-block w-100" alt="...">

    </div>
  </div>
  <button class="carousel-control-prev" type="button" data-coreui-target="#carouselExampleFade" data-coreui-slide="prev">
    <span class="carousel-control-prev-icon" aria-hidden="true"></span>
    <span class="visually-hidden">Previous</span>
  </button>
  <button class="carousel-control-next" type="button" data-coreui-target="#carouselExampleFade" data-coreui-slide="next">
    <span class="carousel-control-next-icon" aria-hidden="true"></span>
    <span class="visually-hidden">Next</span>
  </button>
</div>

Individual `.carousel-item` interval

Add data-coreui-interval="" to a .carousel-item to change the amount of time to delay between automatically cycling to the next item.

html

<div id="carouselExampleInterval" class="carousel slide" data-coreui-ride="carousel">
  <div class="carousel-inner">
    <div class="carousel-item active" data-coreui-interval="10000">
      <img src="..." class="d-block w-100" alt="...">

    </div>
    <div class="carousel-item" data-coreui-interval="2000">
      <img src="..." class="d-block w-100" alt="...">

    </div>
    <div class="carousel-item">
      <img src="..." class="d-block w-100" alt="...">

    </div>
  </div>
  <button class="carousel-control-prev" type="button" data-coreui-target="#carouselExampleInterval" data-coreui-slide="prev">
    <span class="carousel-control-prev-icon" aria-hidden="true"></span>
    <span class="visually-hidden">Previous</span>
  </button>
  <button class="carousel-control-next" type="button" data-coreui-target="#carouselExampleInterval" data-coreui-slide="next">
    <span class="carousel-control-next-icon" aria-hidden="true"></span>
    <span class="visually-hidden">Next</span>
  </button>
</div>

Disable touch swiping

Carousels support swiping left/right on touchscreen devices to move between slides. This can be disabled using the data-coreui-touch attribute. The example below also does not include the data-coreui-ride attribute so it doesn’t autoplay.

html

<div id="carouselExampleControlsNoTouching" class="carousel slide" data-coreui-touch="false">
  <div class="carousel-inner">
    <div class="carousel-item active">
      <img src="..." class="d-block w-100" alt="...">

    </div>
    <div class="carousel-item">
      <img src="..." class="d-block w-100" alt="...">

    </div>
    <div class="carousel-item">
      <img src="..." class="d-block w-100" alt="...">

    </div>
  </div>
  <button class="carousel-control-prev" type="button" data-coreui-target="#carouselExampleControlsNoTouching" data-coreui-slide="prev">
    <span class="carousel-control-prev-icon" aria-hidden="true"></span>
    <span class="visually-hidden">Previous</span>
  </button>
  <button class="carousel-control-next" type="button" data-coreui-target="#carouselExampleControlsNoTouching" data-coreui-slide="next">
    <span class="carousel-control-next-icon" aria-hidden="true"></span>
    <span class="visually-hidden">Next</span>
  </button>
</div>

Dark variant

Deprecated in v5.0.0

Add .carousel-dark to the .carousel for darker controls, indicators, and captions. Controls have been inverted from their default white fill with the filter CSS property. Captions and controls have additional Sass variables that customize the color and background-color.

Heads up! Dark variants for components were deprecated in v5.0.0 with the introduction of color modes. Instead of adding .carousel-dark, set data-coreui-theme="dark" on the root element, a parent wrapper, or the component itself.

First slide label

Some representative placeholder content for the first slide.

Second slide label

Some representative placeholder content for the second slide.

Third slide label

Some representative placeholder content for the third slide.

html

<div id="carouselExampleDark" class="carousel carousel-dark slide">
  <div class="carousel-indicators">
    <button type="button" data-coreui-target="#carouselExampleDark" data-coreui-slide-to="0" class="active" aria-current="true" aria-label="Slide 1"></button>
    <button type="button" data-coreui-target="#carouselExampleDark" data-coreui-slide-to="1" aria-label="Slide 2"></button>
    <button type="button" data-coreui-target="#carouselExampleDark" data-coreui-slide-to="2" aria-label="Slide 3"></button>
  </div>
  <div class="carousel-inner">
    <div class="carousel-item active" data-coreui-interval="10000">
      <img src="..." class="bd-placeholder-img-lg d-block w-100" alt="...">

      <div class="carousel-caption d-none d-md-block">
        <h5>First slide label</h5>
        <p>Some representative placeholder content for the first slide.</p>
      </div>
    </div>
    <div class="carousel-item" data-coreui-interval="2000">
      <img src="..." class="bd-placeholder-img-lg d-block w-100" alt="...">

      <div class="carousel-caption d-none d-md-block">
        <h5>Second slide label</h5>
        <p>Some representative placeholder content for the second slide.</p>
      </div>
    </div>
    <div class="carousel-item">
      <img src="..." class="bd-placeholder-img-lg d-block w-100" alt="...">

      <div class="carousel-caption d-none d-md-block">
        <h5>Third slide label</h5>
        <p>Some representative placeholder content for the third slide.</p>
      </div>
    </div>
  </div>
  <button class="carousel-control-prev" type="button" data-coreui-target="#carouselExampleDark" data-coreui-slide="prev">
    <span class="carousel-control-prev-icon" aria-hidden="true"></span>
    <span class="visually-hidden">Previous</span>
  </button>
  <button class="carousel-control-next" type="button" data-coreui-target="#carouselExampleDark" data-coreui-slide="next">
    <span class="carousel-control-next-icon" aria-hidden="true"></span>
    <span class="visually-hidden">Next</span>
  </button>
</div>

Custom transition

The transition duration of .carousel-item can be changed with the $carousel-transition-duration 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).

Usage

Via data attributes

Utilize data attributes to control the position of the carousel. data-coreui-slide allows the keywords prev or next, which changes the slide position corresponding to its current position. Alternatively, use data-coreui-slide-to to pass a raw slide index to the carousel data-coreui-slide-to="2", which moves the slide position to a particular index beginning with 0.

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

Via JavaScript

Call carousel manually with:

const carousel = new coreui.Carousel('#myCarousel')

Options

As options can be passed via data attributes or JavaScript, you can append an option name to data-coreui-, as in data-coreui-animation="{value}". Make sure to change the case type of the option name from “camelCase” to “kebab-case” when passing the options via data attributes. For example, use data-coreui-custom-class="beautifier" instead of data-coreui-customClass="beautifier".

As of CoreUI 4.2.0, all components support an experimental reserved data attribute data-coreui-config that can house simple component configuration as a JSON string. When an element has data-coreui-config='{"delay":0, "title":123}' and data-coreui-title="456" attributes, the final title value will be 456 and the separate data attributes will override values given on data-coreui-config. In addition, existing data attributes are able to house JSON values like data-coreui-delay='{"show":0,"hide":150}'.

Name	Type	Default	Description
`interval`	number	`5000`	The amount of time to delay between automatically cycling an item.
`keyboard`	boolean	`true`	Whether the carousel should react to keyboard events.
`pause`	string, boolean	`"hover"`	If set to `"hover"`, pauses the cycling of the carousel on `mouseenter` and resumes the cycling of the carousel on `mouseleave`. If set to `false`, hovering over the carousel won’t pause it. On touch-enabled devices, when set to `"hover"`, cycling will pause on `touchend` (once the user finished interacting with the carousel) for two intervals, before automatically resuming. This is in addition to the mouse behavior.
`ride`	string, boolean	`false`	If set to `true`, autoplays the carousel after the user manually cycles the first item. If set to `"carousel"`, autoplays the carousel on load.
`touch`	boolean	`true`	Whether the carousel should support left/right swipe interactions on touchscreen devices.
`wrap`	boolean	`true`	Whether the carousel should cycle continuously or have hard stops.

Methods

Asynchronous methods and transitions

All API methods are asynchronous and start a transition. They return to the caller as soon as the transition is started but before it ends. In addition, a method call on a transitioning component will be ignored.

See our JavaScript documentation for more information.

You can create a carousel instance with the carousel constructor, for example, to initialize with additional options and start cycling through items:

const myCarouselElement = document.querySelector('#myCarousel')
const carousel = new coreui.Carousel(myCarouselElement, {
  interval: 2000,
  wrap: false
})

Method	Description
`cycle`	Cycles through the carousel items from left to right.
`dispose`	Destroys an element’s carousel. (Removes stored data on the DOM element)
`getInstance`	Static method which allows you to get the carousel instance associated to a DOM element, you can use it like this: `coreui.Carousel.getInstance(element)`
`getOrCreateInstance`	Static method which returns a carousel instance associated to a DOM element or create a new one in case it wasn’t initialized. You can use it like this: `coreui.Carousel.getOrCreateInstance(element)`
`next`	Cycles to the next item. Returns to the caller before the next item has been shown (e.g., before the `slid.coreui.carousel` event occurs).
`nextWhenVisible`	Don’t cycle carousel to next when the page isn’t visible or the carousel or its parent isn’t visible. Returns to the caller before the target item has been shown
`pause`	Stops the carousel from cycling through items.
`prev`	Cycles to the previous item. Returns to the caller before the previous item has been shown (e.g., before the `slid.coreui.carousel` event occurs).
`to`	Cycles the carousel to a particular frame (0 based, similar to an array). Returns to the caller before the target item has been shown (e.g., before the `slid.coreui.carousel` event occurs).

Events

CoreUI for 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">).

Event type	Description
`slid.coreui.carousel`	Fired when the carousel has completed its slide transition.
`slide.coreui.carousel`	Fires immediately when the `slide` instance method is invoked.

const myCarousel = document.getElementById('myCarousel')

myCarousel.addEventListener('slide.coreui.carousel', event => {
  // do something...
})

Customizing

SASS variables

Variables for all carousels:

scss/_variables.scss

$carousel-control-color:             $white;
$carousel-control-width:             15%;
$carousel-control-opacity:           .5;
$carousel-control-hover-opacity:     .9;
$carousel-control-transition:        opacity .15s ease;

$carousel-indicator-width:           30px;
$carousel-indicator-height:          3px;
$carousel-indicator-hit-area-height: 10px;
$carousel-indicator-spacer:          3px;
$carousel-indicator-opacity:         .5;
$carousel-indicator-active-bg:       $white;
$carousel-indicator-active-opacity:  1;
$carousel-indicator-transition:      opacity .6s ease;

$carousel-caption-width:             70%;
$carousel-caption-color:             $white;
$carousel-caption-padding-y:         1.25rem;
$carousel-caption-spacer:            1.25rem;

$carousel-control-icon-width:        2rem;

$carousel-control-prev-icon-bg:      url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='#{$carousel-control-color}'><path d='M11.354 1.646a.5.5 0 0 1 0 .708L5.707 8l5.647 5.646a.5.5 0 0 1-.708.708l-6-6a.5.5 0 0 1 0-.708l6-6a.5.5 0 0 1 .708 0z'/></svg>");
$carousel-control-next-icon-bg:      url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='#{$carousel-control-color}'><path d='M4.646 1.646a.5.5 0 0 1 .708 0l6 6a.5.5 0 0 1 0 .708l-6 6a.5.5 0 0 1-.708-.708L10.293 8 4.646 2.354a.5.5 0 0 1 0-.708z'/></svg>");

$carousel-transition-duration:       .6s;
$carousel-transition:                transform $carousel-transition-duration ease-in-out; // Define transform transition first if using multiple transitions (e.g., `transform 2s ease, opacity .5s ease-out`)

Variables for the dark carousel:

scss/_variables.scss

$carousel-dark-indicator-active-bg:  $black;
$carousel-dark-caption-color:        $black;
$carousel-dark-control-icon-filter:  invert(1) grayscale(100);

Bootstrap carousel

Other frameworks

How it works

Example

Slides only

With controls

With indicators

With captions

First slide label

Second slide label

Third slide label

Crossfade

Individual .carousel-item interval

Disable touch swiping

Dark variant

First slide label

Second slide label

Third slide label

Custom transition

Usage

Via data attributes

Via JavaScript

Options

Methods

Asynchronous methods and transitions

Events

Customizing

SASS variables

Individual `.carousel-item` interval