Overview

Individual or compiled

Plugins can be included individually (using Bootstrap's individual *.js files), or all at once (using bootstrap.js or the minified bootstrap.min.js).

Do not attempt to include both.

Both bootstrap.js and bootstrap.min.js contain all plugins in a single file.

Plugin dependencies

Some plugins and CSS components depend on other plugins. If you include plugins individually, make sure to check for these dependencies in the docs. Also note that all plugins depend on jQuery (this means jQuery must be included before the plugin files).

Data attributes

You can use all Bootstrap plugins purely through the markup API without writing a single line of JavaScript. This is Bootstrap's first-class API and should be your first consideration when using a plugin.

That said, in some situations it may be desirable to turn this functionality off. Therefore, we also provide the ability to disable the data attribute API by unbinding all events on the document namespaced with data-api. This looks like this:

Alternatively, to target a specific plugin, just include the plugin's name as a namespace along with the data-api namespace like this:

Programmatic API

We also believe you should be able to use all Bootstrap plugins purely through the JavaScript API. All public APIs are single, chainable methods, and return the collection acted upon.

All methods should accept an optional options object, a string which targets a particular method, or nothing (which initiates a plugin with default behavior):

Each plugin also exposes its raw constructor on a Constructor property: $.fn.popover.Constructor. If you'd like to get a particular plugin instance, retrieve it directly from an element: $('[rel=popover]').data('popover').

No conflict

Sometimes it is necessary to use Bootstrap plugins with other UI frameworks. In these circumstances, namespace collisions can occasionally occur. If this happens, you may call .noConflict on the plugin you wish to revert the value of.

Events

Bootstrap provides custom events for most plugins' unique actions. Generally, these come in an infinitive and past participle form - where the infinitive (ex. show) is triggered at the start of an event, and its past participle form (ex. shown) is trigger on the completion of an action.

As of 3.0.0, all Bootstrap events are namespaced.

All infinitive events provide preventDefault functionality. This provides the ability to stop the execution of an action before it starts.

Third-party libraries

Bootstrap does not officially support third-party JavaScript libraries like Prototype or jQuery UI. Despite .noConflict and namespaced events, there may be compatibility problems that you need to fix on your own.

Transitions transition.js

About transitions

For simple transition effects, include transition.js once alongside the other JS files. If you're using the compiled (or minified) bootstrap.js, there is no need to include this—it's already there.

What's inside

Transition.js is a basic helper for transitionEnd events as well as a CSS transition emulator. It's used by the other plugins to check for CSS transition support and to catch hanging transitions.

Modals modal.js

Examples

Modals are streamlined, but flexible, dialog prompts with the minimum required functionality and smart defaults.

Overlapping modals not supported

Be sure not to open a modal while another is still visible. Showing more than one modal at a time requires custom code.

Modal markup placement

Always try to place a modal's HTML code in a top-level position in your document to avoid other components affecting the modal's appearance and/or functionality.

Mobile device caveats

There are some caveats regarding using modals on mobile devices. See our browser support docs for details.

Static example

A rendered modal with header, body, and set of actions in the footer.

Modal title

One fine body…

Live demo

Toggle a modal via JavaScript by clicking the button below. It will slide down and fade in from the top of the page.

Make modals accessible

Be sure to add role="dialog" to .modal, aria-labelledby="myModalLabel" attribute to reference the modal title, and aria-hidden="true" to tell assistive technologies to skip the modal's DOM elements.

Additionally, you may give a description of your modal dialog with aria-describedby on .modal.

Variations

Sizes

Modals have two optional sizes, available via modifier classes to be placed on a .modal-dialog.

Vertical Center Content

Adding .modal-vert-center to .modal will vertically center the content in the modal body. Note that this style is most noticable on smaller screens where modals are displayed full-screen.

Using Modal Templates

When creating a new modal, an existing modal layout should be extended. For example:


  {% extends "_layouts/modal.html.twig" %}
  {% set modalId = "my-new-modal" %}

Then, we can define the content blocks:


    {% block modalHeader %}
      

    {% endblock %}

    {% block modalBody %}
      

    {% endblock %}

    {% block modalFooter %}
      

    {% endblock %}

Note modal template variation

Be sure to note modal template variations. The modal-lg-no-footer.html.twig template, for example, does not contain a modalFooter block.

Usage

The modal plugin toggles your hidden content on demand, via data attributes or JavaScript. It also adds .modal-open to the <body> to override default scrolling behavior and generates a .modal-backdrop to provide a click area for dismissing shown modals when clicking outside the modal.

Via data attributes

Activate a modal without writing JavaScript. Set data-toggle="modal" on a controller element, like a button, along with a data-target="#foo" or href="#foo" to target a specific modal to toggle.

Via JavaScript

Call a modal with id myModal with a single line of JavaScript:

Options

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

Name type default description
backdrop boolean or the string 'static' true Includes a modal-backdrop element. Alternatively, specify static for a backdrop which doesn't close the modal on click.
keyboard boolean true Closes the modal when escape key is pressed
show boolean true Shows the modal when initialized.
remote path false

If a remote URL is provided, content will be loaded one time via jQuery's load method and injected into the root of the modal element. If you're using the data-api, you may alternatively use the href attribute to specify the remote source. An example of this is shown below:

Methods

.modal(options)

Activates your content as a modal. Accepts an optional options object.

.modal('toggle')

Manually toggles a modal. Returns to the caller before the modal has actually been shown or hidden (i.e. before the shown.bs.modal or hidden.bs.modal event occurs).

.modal('show')

Manually opens a modal. Returns to the caller before the modal has actually been shown (i.e. before the shown.bs.modal event occurs).

.modal('hide')

Manually hides a modal. Returns to the caller before the modal has actually been hidden (i.e. before the hidden.bs.modal event occurs).

Events

Bootstrap's modal class exposes a few events for hooking into modal functionality.

Event Type Description
show.bs.modal This event fires immediately when the show instance method is called. If caused by a click, the clicked element is available as the relatedTarget property of the event.
shown.bs.modal This event is fired when the modal has been made visible to the user (will wait for CSS transitions to complete). If caused by a click, the clicked element is available as the relatedTarget property of the event.
hide.bs.modal This event is fired immediately when the hide instance method has been called.
hidden.bs.modal This event is fired when the modal has finished being hidden from the user (will wait for CSS transitions to complete).
loaded.bs.modal This event is fired when the modal has loaded content using the remote option.

Drawers

Live demo - Top down hidden

Toggle a hidden drawer via JavaScript by clicking the button below. It will slide down from the top of the page.

Live demo - Bottom up with persistent bottom bar

Toggle visibility of the persistent bar by clicking the button below (In a normal setting, the bar would always be visible at the bottom of the page). Then, click the expand button to see it in action. It will slide up from the bottom of the page.

Placement

Drawers have two placements, available via modifier classes to be placed on a .drawer.

drawer-fixed-top and drawer-fixed-bottom can be used for positioning. The fixed bottom drawer's .drawer-content will be persistently visible at the bottom of the page in which it is contained while a fixed top drawer should also include a .drawer-hidden class initially.

Usage

Via data attributes

Add data-toggle="drawer" and data-target="#myDrawerId" to a link or button to toggle a dropdown.

Dropdowns dropdown.js

Add dropdown menus to nearly anything with this simple plugin, including the navbar, tabs, and pills.

Within a navbar

Within pills

Via data attributes or JavaScript, the dropdown plugin toggles hidden content (dropdown menus) by toggling the .open class on the parent list item. When opened, the plugin also adds .dropdown-backdrop as a click area for closing dropdown menus when clicking outside the menu. Note: The data-toggle=dropdown attribute is relied on for closing dropdown menus at an application level, so it's a good idea to always use it.

Via data attributes

Add data-toggle="dropdown" to a link or button to toggle a dropdown.

To keep URLs intact, use the data-target attribute instead of href="#".

Via JavaScript

Call the dropdowns via JavaScript:

Options

None

Methods

$().dropdown('toggle')

Toggles the dropdown menu of a given navbar or tabbed navigation.

Events

Event Type Description
show.bs.dropdown This event fires immediately when the show instance method is called. The toggling anchor element is available as the relatedTarget property of the event.
shown.bs.dropdown This event is fired when the dropdown has been made visible to the user (will wait for CSS transitions, to complete). The toggling anchor element is available as the relatedTarget property of the event.
hide.bs.dropdown This event is fired immediately when the hide instance method has been called. The toggling anchor element is available as the relatedTarget property of the event.
hidden.bs.dropdown This event is fired when the dropdown has finished being hidden from the user (will wait for CSS transitions, to complete). The toggling anchor element is available as the relatedTarget property of the event.

ScrollSpy scrollspy.js

Example in navbar

The ScrollSpy plugin is for automatically updating nav targets based on scroll position. Scroll the area below the navbar and watch the active class change. The dropdown sub items will be highlighted as well.

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Usage

Via data attributes

To easily add scrollspy behavior to your topbar navigation, add data-spy="scroll" to the element you want to spy on (most typically this would be the <body>). Then add the data-target attribute with the ID or class of the parent element of any Bootstrap .nav component.

Via JavaScript

Call the scrollspy via JavaScript:

Resolvable ID targets required

Navbar links must have resolvable id targets. For example, a <a href="#home">home</a> must correspond to something in the DOM like <div id="home"></div>.

Methods

.scrollspy('refresh')

When using scrollspy in conjunction with adding or removing of elements from the DOM, you'll need to call the refresh method like so:

Options

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

Name type default description
offset number 10 Pixels to offset from top when calculating position of scroll.

Events

Event Type Description
activate.bs.scrollspy This event fires whenever a new item becomes activated by the scrollspy.

Scrollable tabs nav-tabs-scrollable.js

Example

Togglable tabs tab.js

Example tabs

Add quick, dynamic tab functionality to transition through panes of local content, even via dropdown menus.

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Extends tabbed navigation

This plugin extends the tabbed navigation component to add tabbable areas.

Usage

Enable tabbable tabs via JavaScript (each tab needs to be activated individually):

You can activate individual tabs in several ways:

Markup

You can activate a tab or pill navigation without writing any JavaScript by simply specifying data-toggle="tab" or data-toggle="pill" on an element. Adding the nav and nav-tabs classes to the tab ul will apply the Bootstrap tab styling, while adding the nav and nav-pills classes will apply pill styling.

Fade effect

To make tabs fade in, add .fade to each .tab-pane. The first tab pane must also have .in to properly fade in initial content.

Methods

$().tab

Activates a tab element and content container. Tab should have either a data-target or an href targeting a container node in the DOM.

Events

Event Type Description
show.bs.tab This event fires on tab show, but before the new tab has been shown. Use event.target and event.relatedTarget to target the active tab and the previous active tab (if available) respectively.
shown.bs.tab This event fires on tab show after a tab has been shown. Use event.target and event.relatedTarget to target the active tab and the previous active tab (if available) respectively.

Tooltips tooltip.js

Examples

Inspired by the excellent jQuery.tipsy plugin written by Jason Frame; Tooltips are an updated version, which don't rely on images, use CSS3 for animations, and data-attributes for local title storage.

Hover over the links below to see tooltips:

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Four directions

Opt-in functionality

For performance reasons, the Tooltip and Popover data-apis are opt-in, meaning you must initialize them yourself.

Tooltips in button groups and input groups require special setting

When using tooltips on elements within a .btn-group or an .input-group, you'll have to specify the option container: 'body' (documented below) to avoid unwanted side effects (such as the element growing wider and/or losing its rounded corners when the tooltip is triggered).

Tooltips on disabled elements require wrapper elements

To add a tooltip to a disabled or .disabled element, put the element inside of a <div> and apply the tooltip to that <div> instead.

Usage

The tooltip plugin generates content and markup on demand, and by default places tooltips after their trigger element.

Trigger the tooltip via JavaScript:

Markup

The required markup for a tooltip is only a data attribute and title on the HTML element you wish to have a tooltip. The generated markup of a tooltip is rather simple, though it does require a position (by default, set to top by the plugin).

Multiple-line links

Sometimes you want to add a tooltip to a hyperlink that wraps multiple lines. The default behavior of the tooltip plugin is to center it horizontally and vertically. Add white-space: nowrap; to your anchors to avoid this.

Options

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

Name type default description
animation boolean true apply a CSS fade transition to the tooltip
html boolean false Insert HTML into the tooltip. If false, jQuery's text method will be used to insert content into the DOM. Use text if you're worried about XSS attacks.
placement string | function 'top' how to position the tooltip - top | bottom | left | right | auto.
When "auto" is specified, it will dynamically reorient the tooltip. For example, if placement is "auto left", the tooltip will display to the left when possible, otherwise it will display right.
selector string false If a selector is provided, tooltip objects will be delegated to the specified targets.
title string | function '' default title value if title attribute isn't present
trigger string 'hover focus' how tooltip is triggered - click | hover | focus | manual. You may pass multiple triggers; separate them with a space.
delay number | object 0

delay showing and hiding the tooltip (ms) - does not apply to manual trigger type

If a number is supplied, delay is applied to both hide/show

Object structure is: delay: { show: 500, hide: 100 }
container string | false false

Appends the tooltip to a specific element. Example: container: 'body'

Data attributes for individual tooltips

Options for individual tooltips can alternatively be specified through the use of data attributes, as explained above.

Methods

$().tooltip(options)

Attaches a tooltip handler to an element collection.

.tooltip('show')

Reveals an element's tooltip.

.tooltip('hide')

Hides an element's tooltip.

.tooltip('toggle')

Toggles an element's tooltip.

.tooltip('destroy')

Hides and destroys an element's tooltip.

Events

Event Type Description
show.bs.tooltip This event fires immediately when the show instance method is called.
shown.bs.tooltip This event is fired when the tooltip has been made visible to the user (will wait for CSS transitions to complete).
hide.bs.tooltip This event is fired immediately when the hide instance method has been called.
hidden.bs.tooltip This event is fired when the tooltip has finished being hidden from the user (will wait for CSS transitions to complete).

Popovers popover.js

Examples

Add small overlays of content, like those on the iPad, to any element for housing secondary information.

Plugin dependency

Popovers require the tooltip plugin to be included in your version of Bootstrap.

Opt-in functionality

For performance reasons, the Tooltip and Popover data-apis are opt-in, meaning you must initialize them yourself.

Popovers in button groups and input groups require special setting

When using popovers on elements within a .btn-group or an .input-group, you'll have to specify the option container: 'body' (documented below) to avoid unwanted side effects (such as the element growing wider and/or losing its rounded corners when the popover is triggered).

Popovers on disabled elements require wrapper elements

To add a popover to a disabled or .disabled element, put the element inside of a <div> and apply the popover to that <div> instead.

Static popover

Four options are available: top, right, bottom, and left aligned.

Popover top

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Popover right

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Popover bottom

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Popover left

Sed posuere consectetur est at lobortis. Aenean eu leo quam. Pellentesque ornare sem lacinia quam venenatis vestibulum.

Live demo

Click to toggle popover

Four directions

Multiple-line links

Sometimes you want to add a popover to a hyperlink that wraps multiple lines. The default behavior of the popover plugin is to center it horizontally and vertically. Add white-space: nowrap; to your anchors to avoid this.

Usage

Enable popovers via JavaScript:

Options

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

Name type default description
animation boolean true apply a CSS fade transition to the popover
html boolean false Insert HTML into the popover. If false, jQuery's text method will be used to insert content into the DOM. Use text if you're worried about XSS attacks.
placement string | function 'right' how to position the popover - top | bottom | left | right | auto.
When "auto" is specified, it will dynamically reorient the popover. For example, if placement is "auto left", the popover will display to the left when possible, otherwise it will display right.
selector string false if a selector is provided, popover objects will be delegated to the specified targets. In practice, this is used to enable dynamic HTML content to have popovers added. See this and an informative example.
trigger string 'click' how popover is triggered - click | hover | focus | manual
title string | function '' default title value if title attribute isn't present
content string | function '' default content value if data-content attribute isn't present
delay number | object 0

delay showing and hiding the popover (ms) - does not apply to manual trigger type

If a number is supplied, delay is applied to both hide/show

Object structure is: delay: { show: 500, hide: 100 }
container string | false false

Appends the popover to a specific element. Example: container: 'body'. This option is particularly useful in that it allows you to position the popover in the flow of the document near the triggering element - which will prevent the popover from floating away from the triggering element during a window resize.

Data attributes for individual popovers

Options for individual popovers can alternatively be specified through the use of data attributes, as explained above.

Methods

$().popover(options)

Initializes popovers for an element collection.

.popover('show')

Reveals an elements popover.

.popover('hide')

Hides an elements popover.

.popover('toggle')

Toggles an elements popover.

.popover('destroy')

Hides and destroys an element's popover.

Events

Event Type Description
show.bs.popover This event fires immediately when the show instance method is called.
shown.bs.popover This event is fired when the popover has been made visible to the user (will wait for CSS transitions to complete).
hide.bs.popover This event is fired immediately when the hide instance method has been called.
hidden.bs.popover This event is fired when the popover has finished being hidden from the user (will wait for CSS transitions to complete).

Progress

Segmented Radial

Add segments to a radial progress bar with this plugin. Ideal when individual units have meaning, like a 7 day countdown where each day is a segment.

sr-only msg fpo

Days left to renew
sr-only msg fpo

Complete

Usage

All data is handled with data attributes and, like normal progress bars, the use of aria attributes for progress values.

  • aria-valuenow the current progress value
  • aria-valuemin the minimun value allowed
  • aria-valuemax the maximum value allowed
  • data-radprogress-offset the size of the gap between segments
  • data-radprogress-stroke-width the thickness of the circle
  • data-radprogress-diameter the diamater of the circle in pixels
  • data-radprogress-countdown true or false, Whether or not to count down (for example, 3 days left out of 14) - defaults to false.
  • data-radprogress-counter no value required, will hold the numerical progress value

In addition to the attributes above, the .progress-radial container should contain the following child elements:

  • .svg-holder container for the generated SVG element
  • .progress-counter optional container for the progress numerical value which will be centered in the circle
  • Any element with a data-radprogress-counter attribute. This is optional and will hold the actual numerical progress value.

Multi-step

Navigation pattern for step-through processes such as registration.

  • Verify
  • Upload
  • Security

  • Step 1

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  • Step 2

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  • Step 3

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Usage

The outer container should have an attribute multi-step-progress. Contained inside should be two unordered lists with corresponding items. One with a class of steps and one with a class of content. Finally, there should also be two buttons in the container with attributes: data-step-forward and data-step-back.

Attributes

  • data-target-step list item attribute in .steps which corresponds to data-step in .content
  • data-icon Icon to display on .steps list items. NOTE: this value should be an HTML entity based on unicode for the desired icon.
  • data-step list item attribute in .content which corresponds to data-target-step in .steps
  • data-step-forward Add this to the forward button
  • data-step-back Add this to the back button

Options

  • currentStep - option to pass the current step on init. Defaults to 1.

Alert messages alert.js

Example alerts

Add dismiss functionality to all alert messages with this plugin.

Holy guacamole! Best check yo self, you're not looking too good.

Oh snap! You got an error!

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Usage

Enable dismissal of an alert via JavaScript:

Markup

Just add data-dismiss="alert" to your close button to automatically give an alert close functionality.

Methods

$().alert()

Wraps all alerts with close functionality. To have your alerts animate out when closed, make sure they have the .fade and .in class already applied to them.

.alert('close')

Closes an alert.

Events

Bootstrap's alert class exposes a few events for hooking into alert functionality.

Event Type Description
close.bs.alert This event fires immediately when the close instance method is called.
closed.bs.alert This event is fired when the alert has been closed (will wait for CSS transitions to complete).

Buttons button.js

Example uses

Do more with buttons. Control button states or create groups of buttons for more components like toolbars.

Stateful

Add data-loading-text="Loading..." to use a loading state on a button.

Single toggle

Add data-toggle="button" to activate toggling on a single button.

Checkbox

Add data-toggle="buttons" to a group of checkboxes for checkbox style toggling on btn-group.

Radio

Add data-toggle="buttons" to a group of radio inputs for radio style toggling on btn-group.

Usage

Enable buttons via JavaScript:

Markup

Data attributes are integral to the button plugin. Check out the example code below for the various markup types.

Options

None

Methods

$().button('toggle')

Toggles push state. Gives the button the appearance that it has been activated.

Auto toggling

You can enable auto toggling of a button by using the data-toggle attribute.

$().button('loading')

Sets button state to loading - disables button and swaps text to loading text. Loading text should be defined on the button element using the data attribute data-loading-text.

Cross-browser compatibility

Firefox persists the disabled state across page loads. A workaround for this is to use autocomplete="off".

$().button('reset')

Resets button state - swaps text to original text.

$().button(string)

Resets button state - swaps text to any data defined text state.

Collapse collapse.js

About

Get base styles and flexible support for collapsible components like accordions and navigation.

Plugin dependency

Collapse requires the transitions plugin to be included in your version of Bootstrap.

Example accordion

Using the collapse plugin, we built a simple accordion by extending the panel component.

Collapsible Group Item #1

Content

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Collapsible Group Item #2

Content

Nulla pariatur eu fugiat deserunt aliquip ex duis tempor laboris ex reprehenderit ullamco incididunt sit pariatur do nostrud.

Collapsible Group Item #3

Content

Nulla pariatur eu fugiat deserunt aliquip ex duis tempor laboris ex reprehenderit ullamco incididunt sit pariatur do nostrud.

You can also use the plugin without the accordion markup. Make a button toggle the expanding and collapsing of another element.

Usage

The collapse plugin utilizes a few classes to handle the heavy lifting:

  • .collapse hides the content
  • .collapse.in shows the content
  • .collapsing is added when the transition starts, and removed when it finishes

These classes can be found in component-animations.less.

Via data attributes

Just add data-toggle="collapse" and a data-target to element to automatically assign control of a collapsible element. The data-target attribute accepts a CSS selector to apply the collapse to. Be sure to add the class collapse to the collapsible element. If you'd like it to default open, add the additional class in.

To add accordion-like group management to a collapsible control, add the data attribute data-parent="#selector". Refer to the demo to see this in action.

Via JavaScript

Enable manually with:

Options

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

Name type default description
parent selector false If selector then all collapsible elements under the specified parent will be closed when this collapsible item is shown. (similar to traditional accordion behavior - this dependent on the panel class)
toggle boolean true Toggles the collapsible element on invocation

Methods

.collapse(options)

Activates your content as a collapsible element. Accepts an optional options object.

.collapse('toggle')

Toggles a collapsible element to shown or hidden.

.collapse('show')

Shows a collapsible element.

.collapse('hide')

Hides a collapsible element.

Events

Bootstrap's collapse class exposes a few events for hooking into collapse functionality.

Event Type Description
show.bs.collapse This event fires immediately when the show instance method is called.
shown.bs.collapse This event is fired when a collapse element has been made visible to the user (will wait for CSS transitions to complete).
hide.bs.collapse This event is fired immediately when the hide method has been called.
hidden.bs.collapse This event is fired when a collapse element has been hidden from the user (will wait for CSS transitions to complete).

Carousel carousel.js

The slideshow below shows a generic plugin and component for cycling through elements like a carousel.

Optional captions

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.

Accessibility issue

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

Multiple carousels

Carousels require the use of an id on the outermost container, .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.

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.

Via JavaScript

Call carousel manually with:

Options

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.

Methods

.carousel(options)

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

.carousel('cycle')

Cycles through the carousel items from left to right.

.carousel('pause')

Stops the carousel from cycling through items.

.carousel(number)

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

.carousel('prev')

Cycles to the previous item.

.carousel('next')

Cycles to the next item.

Events

Bootstrap's carousel class exposes two events for hooking into carousel functionality.

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

Affix affix.js

Example

The subnavigation on the right is a live demo of the affix plugin.

Usage

Use the affix plugin via data attributes or manually with your own JavaScript. In both situations, you must provide CSS for the positioning of your content.

Positioning via CSS

The affix plugin toggles between three classes, each representing a particular state: .affix, .affix-top, and .affix-bottom. You must provide the styles for these classes yourself (independent of this plugin) to handle the actual positions.

Here's how the affix plugin works:

  1. To start, the plugin adds .affix-top to indicate the element is in its top-most position. At this point no CSS positioning is required.
  2. Scrolling past the element you want affixed should trigger the actual affixing. This is where .affix replaces .affix-top and sets position: fixed; (provided by Bootstrap's code CSS).
  3. If a bottom offset is defined, scrolling past that should replace .affix with .affix-bottom. Since offsets are optional, setting one requires you to set the appropriate CSS. In this case, add position: absolute; when necessary. The plugin uses the data attribute or JavaScript option to determine where to position the element from there.

Follow the above steps to set your CSS for either of the usage options below.

Via data attributes

To easily add affix behavior to any element, just add data-spy="affix" to the element you want to spy on. Use offsets to define when to toggle the pinning of an element.

Via JavaScript

Call the affix plugin via JavaScript:

Options

Options can be passed via data attributes or JavaScript. For data attributes, append the option name to data-, as in data-offset-top="200".

Name type default description
offset number | function | object 10 Pixels to offset from screen when calculating position of scroll. If a single number is provided, the offset will be applied in both top and bottom directions. To provide a unique, bottom and top offset just provide an object offset: { top: 10 } or offset: { top: 10, bottom: 5 }. Use a function when you need to dynamically calculate an offset.

Events

Bootstrap's affix class exposes a few events for hooking into affix functionality.

Event Type Description
affix.bs.affix This event fires immediately before the element has been affixed.
affixed.bs.affix This event is fired after the element has been affixed.
affix-top.bs.affix This event fires immediately before the element has been affixed-top.
affixed-top.bs.affix This event is fired after the element has been affixed-top.
affix-bottom.bs.affix This event fires immediately before the element has been affixed-bottom.
affixed-bottom.bs.affix This event is fired after the element has been affixed-bottom.

Content Split bootstap.contentsplit.js

Example

Splits sidebar content into top and bottom contaners on smaller screens. All content and container definitions are required via data attributes.

Resize the bwowser window to see it in action.

Normal Page Content

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Et officia elit irure velit elit aute incididunt ea eu irure veniam duis eiusmod tempor sit elit. Nisi ad eu magna veniam nulla dolor eu mollit cillum ea dolor non ut proident. Eu quis elit duis dolor quis consequat eiusmod elit magna consequat et ad laboris dolore amet nulla consequat. Nostrud consectetur magna aliquip sunt Lorem quis elit ea anim culpa ad. Proident ea et sunt aliqua magna minim tempor reprehenderit laboris do ad id in. Mollit dolor enim commodo sunt sint ea magna amet eiusmod non enim pariatur labore ullamco excepteur sunt officia. Ad cillum aute minim dolor labore consequat et cupidatat duis ullamco id minim magna esse. Labore et incididunt quis non eu officia aliquip laboris irure eiusmod et veniam consequat elit occaecat.

Usage

Use the content split plugin via data attributes and trigger with JavaScript.

Data attributes

To add split content behavior, first define the parent container with the bare attribute data-split-content. Then, within that container, you must define five other elements with data attributes. Three containers and two elements that hold the actual content we want to split up.

  • data-split-content-container="desktop" - This is where the content will live, unsplit, on larger screens
  • data-split-content-container="mobile" - This is where the main content will live on smaller screens
  • data-split-content-container="bottom" - This is where the buttons will live on smaller screens, usually a fixed-bottom element
  • data-split-content-chunk="content" - This is the main content which will be moved between data-split-content-container="desktop" and data-split-content-container="mobile"
  • data-split-content-chunk="buttons" - This is the buttons which will be moved between data-split-content-container="desktop" and data-split-content-container="bottom"

JavaScript

Call the content split plugin via JavaScript. Simply target the outer container and pass a breakpoint if you wish:

Note: the default breakpoint is 991 if one is not provided.