Bootstrap - Carousel


How can we create a carousel?

<div id="carousel-example-generic" class="carousel slide" data-ride="carousel">
  <!-- Indicators -->
  <ol class="carousel-indicators">
    <li data-target="#carousel-example-generic" data-slide-to="0" class="active"></li>
    <li data-target="#carousel-example-generic" data-slide-to="1"></li>
    <li data-target="#carousel-example-generic" data-slide-to="2"></li>

  <!-- Wrapper for slides -->
  <div class="carousel-inner" role="listbox">
    <div class="item active">
      <img src="..." alt="...">
      <div class="carousel-caption">
    <div class="item">
      <img src="..." alt="...">
      <div class="carousel-caption">

  <!-- Controls -->
  <a class="left carousel-control" href="#carousel-example-generic" role="button" data-slide="prev">
    <span class="glyphicon glyphicon-chevron-left" aria-hidden="true"></span>
    <span class="sr-only">Previous</span>
  <a class="right carousel-control" href="#carousel-example-generic" role="button" data-slide="next">
    <span class="glyphicon glyphicon-chevron-right" aria-hidden="true"></span>
    <span class="sr-only">Next</span>

Transition animations not supported in Internet Explorer 8 & 9. Bootstrap exclusively uses CSS3 for its animations, but Internet Explorer 8 & 9 don't support the necessary CSS properties. Thus, there are no slide transition animations when using these browsers. We have intentionally decided not to include jQuery-based fallbacks for the transitions.

The .active class needs to be added to one of the slides. Otherwise, the carousel will not be visible.

Is the carousel plugin accessible?

The carousel component is generally not compliant with accessibility standards. If you need to be compliant, please consider other options for presenting your content.

How can we implement a carousel with caption?

Add captions to your slides easily with the .carousel-caption element within any .item. Place just about any optional HTML within there and it will be automatically aligned and formatted.

<div class="item">
  <img src="..." alt="...">
  <div class="carousel-caption">

How can we implement multiple carousels?

Carousels require the use of an id on the outermost container (the .carousel) for carousel controls to function properly. When adding multiple carousels, or when changing a carousel's id, be sure to update the relevant controls.

How can we create a carousel using 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.

How can we create a carousel using JavaScript?


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

Name type default description
interval number 5000 The amount of time to delay between automatically cycling an item. If false, carousel will not automatically cycle.
pause string hover Pauses the cycling of the carousel on mouseenter and resumes the cycling of the carousel on mouseleave.
wrap boolean true Whether the carousel should cycle continuously or have hard stops.
keyboard boolean true Whether the carousel should react to keyboard events.

How can we start cycling through the carousel?


Cycles through the carousel items from left to right.

How can we pause carousel?


Stops the carousel from cycling through items.

How can we cycle the carousel to a particular frame?


Cycles the carousel to a particular frame (0 based, similar to an array).

How can we go to the previous slide?


How can we go to the next slide?


What are the event types used by the carousel plugin?

Event Type Description This event fires immediately when the slide instance method is invoked. This event is fired when the carousel has completed its slide transition.

Both events have the following additional properties:

  1. direction: The direction in which the carousel is sliding (either "left" or "right").
  2. relatedTarget: The DOM element that is being slid into place as the active item.

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

$('#myCarousel').on('', function () {
  // do something…
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