Button

Buttons allow users to perform an action or to navigate to another page, with a single tap.

Contents

Bootstrap 5 Button component

Responsive button built with the latest Bootstrap 5.

Use Bootstrap’s custom button styles for actions in forms, dialogs, and more with support for multiple sizes, states, and more.

Basic examples

Bootstrap includes several predefined button styles, each serving its own semantic purpose, with a few extras thrown in for more control.

Link

<button type="button" class="btn btn-primary">Primary</button>
<button type="button" class="btn btn-secondary">Secondary</button>
<button type="button" class="btn btn-success">Success</button>
<button type="button" class="btn btn-danger">Danger</button>
<button type="button" class="btn btn-warning">Warning</button>
<button type="button" class="btn btn-info">Info</button>
<button type="button" class="btn btn-light">Light</button>
<button type="button" class="btn btn-dark">Dark</button>
<a role="button" class="btn btn-link" href="#">Link</a>

The new button styles are available on FastBootstrap.

Style	Description
`.btn-subtle`	For secondary actions, such as “Cancel" on the modal dialog.
`.btn-default`	For form actions and general page actions by default in Atlassian design

<button type="button" class="btn btn-default">Default</button>
<button type="button" class="btn btn-subtle">Subtle</button>

Conveying meaning to assistive technologies

Using color to add meaning only provides a visual indication, which will not be conveyed to users of assistive technologies – such as screen readers. Ensure that information denoted by the color is either obvious from the content itself (e.g. the visible text), or is included through alternative means, such as additional text hidden with the .visually-hidden class.

Disable text wrapping

If you don’t want the button text to wrap, you can add the .text-nowrap class to the button. In Sass, you can set $btn-white-space: nowrap to disable text wrapping for each button.

Button tags

The .btn classes are designed to be used with the <button> element. However, you can also use these classes on <a> or <input> elements (though some browsers may apply a slightly different rendering).

When using button classes on <a> elements that are used to trigger in-page functionality (like collapsing content), rather than linking to new pages or sections within the current page, these links should be given a role="button" to appropriately convey their purpose to assistive technologies such as screen readers.

Link

<a class="btn btn-primary" href="#" role="button">Link</a>
<button class="btn btn-primary" type="submit">Button</button>
<input class="btn btn-primary" type="button" value="Input">
<input class="btn btn-primary" type="submit" value="Submit">
<input class="btn btn-primary" type="reset" value="Reset">

Button variations

FastBootstrap have six button variants with a unique styling for contextual. Use .active to indicate the button is selected if you need.

Default

Use .btn-default to a standard button for form actions and general page actions.

<button type="button" class="btn btn-default">Default</button>
<button type="button" class="btn btn-default" disabled>Disabled</button>
<button type="button" class="btn btn-default active">Selected</button>

Primary

Use a .btn-primary button to call attention to an action on a form or to highlight the strongest call to action on a page.

<button type="button" class="btn btn-primary">Primary</button>
<button type="button" class="btn btn-primary" disabled>Disabled</button>
<button type="button" class="btn btn-primary active">Selected</button>

Warning

Use a btn-warning button for a significant change.

<button type="button" class="btn btn-warning">Warning</button>
<button class="btn btn-warning" disabled>Disabled</button>
<button type="button" class="btn btn-warning active">Selected</button>

Danager

Use a .btn-danger button for a destructive action such as deleting.

<button type="button" class="btn btn-danger">Danager</button>
<button type="button" class="btn btn-danger" disabled>Disabled</button>
<button type="button" class="btn btn-danger active">Selected</button>

Link

Use a .btn-link class to any <a> elements, and with role="button".

Link Disabled Selected

<a role="button" class="btn btn-link" href="#">Link</a>
<a role="button" class="btn btn-link disabled" href="#">Disabled</a>
<a role="button" class="btn btn-link active" href="#">Selected</a>

Subtle

Use a .btn-subtle button for secondary actions, such as “Cancel".

<button class="btn btn-subtle">Subtle</button>
<button class="btn btn-subtle" disabled>Disabled</button>
<button class="btn btn-subtle active">Selected</button>

Outlined button

In need of a button, but not the hefty background colors they bring? Replace the default modifier classes with the .btn-outline-* ones to remove all background images and colors on any button.

<button type="button" class="btn btn-outline-primary">Primary</button>
<button type="button" class="btn btn-outline-secondary">Secondary</button>
<button type="button" class="btn btn-outline-success">Success</button>
<button type="button" class="btn btn-outline-danger">Danger</button>
<button type="button" class="btn btn-outline-warning">Warning</button>
<button type="button" class="btn btn-outline-info">Info</button>
<button type="button" class="btn btn-outline-light">Light</button>
<button type="button" class="btn btn-outline-dark">Dark</button>

Some of the button styles use a relatively light foreground color, and should only be used on a dark background in order to have sufficient contrast.

Rounded button

Add .rounded-* class to make the button rounded and squared. Check out our border radius utilities for more supported border radius.

<button type="button" class="btn btn-primary rounded-0">Squared</button>
<button type="button" class="btn btn-primary rounded-2">rounded-2</button>
<button type="button" class="btn btn-primary rounded-3">rounded-3</button>
<button type="button" class="btn btn-primary rounded-pill">Pill</button>
<button type="button" class="btn btn-primary rounded-circle">C</button>

Colors

This component already includes several predefined button styles, each serving its own semantic purpose, with a few extras thrown in for more control. You can use the .btn-{color} or .bg-{color} to change the appearance of the button. Check out background color and text color for get all colors.

<button type="button" class="btn btn-primary">Primary</button>
<button type="button" class="btn btn-secondary">Secondary</button>
<button type="button" class="btn btn-success">Success</button>
<button type="button" class="btn btn-info">Info</button>
<button type="button" class="btn btn-light">Light</button>
<button type="button" class="btn btn-dark">Dark</button>
<button type="button" class="btn bg-blue-50">blue-50</button>
<button type="button" class="btn bg-purple-200 text-white">purple-200</button>

Sizes

Fancy larger or smaller buttons? Add .btn-lg or .btn-sm for additional sizes.

Small

Normal

Large

<span class="fs-sm">Small</span>
<div>
  <button type="button" class="btn btn-primary btn-sm">Primary</button>
  <button type="button" class="btn btn-secondary btn-sm">Secondary</button>
</div>
<span class="fs-sm">Normal</span>
<div>
  <button type="button" class="btn btn-primary">Primary</button>
  <button type="button" class="btn btn-secondary">Secondary</button>
</div>
<span class="fs-sm">Large</span>
<div>
  <button type="button" class="btn btn-primary btn-lg">Primary</button>
  <button type="button" class="btn btn-secondary btn-lg">Secondary</button>
</div>

You can even roll your own custom sizing with CSS variables:

<button type="button" class="btn btn-primary"
        style="--bs-btn-padding-y: .25rem; --bs-btn-padding-x: .5rem; --bs-btn-font-size: .75rem;">
  Custom button
</button>

Disabled state

Make buttons look inactive by adding the disabled boolean attribute to any <button> element. Disabled buttons have pointer-events: none applied to, preventing hover and active states from triggering.

<button type="button" class="btn btn-primary" disabled>Primary button</button>
<button type="button" class="btn btn-secondary" disabled>Button</button>
<button type="button" class="btn btn-outline-primary" disabled>Primary button</button>
<button type="button" class="btn btn-outline-secondary" disabled>Button</button>

Disabled buttons using the <a> element behave a bit different:

<a>s don’t support the disabled attribute, so you must add the .disabled class to make it visually appear disabled.
Some future-friendly styles are included to disable all pointer-events on anchor buttons.
Disabled buttons using <a> should include the aria-disabled="true" attribute to indicate the state of the element to assistive technologies.
Disabled buttons using <a> should not include the href attribute.

Primary link Link

<a class="btn btn-primary disabled" role="button" aria-disabled="true">Primary link</a>
<a class="btn btn-secondary disabled" role="button" aria-disabled="true">Link</a>

Link functionality caveat

To cover cases where you have to keep the href attribute on a disabled link, the .disabled class uses pointer-events: none to try to disable the link functionality of <a>s. Note that this CSS property is not yet standardized for HTML, but all modern browsers support it. In addition, even in browsers that do support pointer-events: none, keyboard navigation remains unaffected, meaning that sighted keyboard users and users of assistive technologies will still be able to activate these links. So to be safe, in addition to aria-disabled="true", also include a tabindex="-1" attribute on these links to prevent them from receiving keyboard focus, and use custom JavaScript to disable their functionality altogether.

Primary link Link

<a href="#" class="btn btn-primary disabled" tabindex="-1" role="button" aria-disabled="true">Primary link</a>
<a href="#" class="btn btn-secondary disabled" tabindex="-1" role="button" aria-disabled="true">Link</a>

Block buttons

Buttons can be expanded to full width to fill its parent container.

Create responsive stacks of full-width, “block buttons” like those in Bootstrap 4 with a mix of our display and gap utilities. By using utilities instead of button specific classes, we have much greater control over spacing, alignment, and responsive behaviors.

<div class="d-grid gap-2">
  <button class="btn btn-primary" type="button">Button</button>
  <button class="btn btn-primary" type="button">Button</button>
</div>

Here we create a responsive variation, starting with vertically stacked buttons until the md breakpoint, where .d-md-block replaces the .d-grid class, thus nullifying the gap-2 utility. Resize your browser to see them change.

<div class="d-grid gap-2 d-md-block">
  <button class="btn btn-primary" type="button">Button</button>
  <button class="btn btn-primary" type="button">Button</button>
</div>

You can adjust the width of your block buttons with grid column width classes. For example, for a half-width “block button”, use .col-6. Center it horizontally with .mx-auto, too.

<div class="d-grid gap-2 col-6 mx-auto">
  <button class="btn btn-primary" type="button">Button</button>
  <button class="btn btn-primary" type="button">Button</button>
</div>

Additional utilities can be used to adjust the alignment of buttons when horizontal. Here we’ve taken our previous responsive example and added some flex utilities and a margin utility on the button to right align the buttons when they’re no longer stacked.

<div class="d-grid gap-2 d-md-flex justify-content-md-end">
  <button class="btn btn-primary me-md-2" type="button">Button</button>
  <button class="btn btn-primary" type="button">Button</button>
</div>

With icons

Buttons may include an icon before or after the text.

<button class="btn btn-default"><i class="fas fa-bars"></i></button>
<button class="btn btn-default"><i class="fas fa-search"></i></button>
<button class="btn btn-primary"><i class="fas fa-star"></i> Icon before</button>
<button class="btn btn-primary">Icon after <i class="fas fa-star"></i> </button>

Combining our icons and custom colors you can create social buttons. Combining our icons and custom colors you can create social buttons.

<a class="btn btn-primary border-0" style="background-color: #3b5998;" href="#" role="button">
  <i class="fa-brands fa-facebook-f"></i>
</a>
<a class="btn btn-primary border-0" style="background-color: #1d9bf0;" href="#" role="button">
  <i class="fa-brands fa-twitter"></i>
</a>
<a class="btn btn-primary border-0" style="background-color: #dd4b39;" href="#" role="button">
  <i class="fa-brands fa-google"></i>
</a>
<a class="btn btn-primary border-0" style="background-color: #ac2bac;" href="#" role="button">
  <i class="fa-brands fa-instagram"></i>
</a>
<a class="btn btn-primary border-0" style="background-color: #0082ca;" href="#" role="button">
  <i class="fa-brands fa-linkedin-in"></i>
</a>
<a class="btn btn-primary border-0" style="background-color: #c61118;" href="#" role="button">
  <i class="fa-brands fa-pinterest"></i>
</a>

You also can be changed by modifying a local CSS custom property --bs-btn-bg,--bs-btn-hover-bg and --bs-btn-active-bg. See the Bootstrap button variables.

<a class="btn btn-primary border-0" href="#" role="button"
 style="--bs-btn-bg: #1d9bf0; --bs-btn-hover-bg: #0c7abf">
  <i class="fa-brands fa-twitter"></i> Tweet
</a>

Contents

Button plugin

The button plugin allows you to create simple on/off toggle buttons.

Visually, these toggle buttons are identical to the checkbox toggle buttons. However, they are conveyed differently by assistive technologies: the checkbox toggles will be announced by screen readers as “checked”/“not checked” (since, despite their appearance, they are fundamentally still checkboxes), whereas these toggle buttons will be announced as “button”/“button pressed”. The choice between these two approaches will depend on the type of toggle you are creating, and whether or not the toggle will make sense to users when announced as a checkbox or as an actual button.

Toggle states

Add data-bs-toggle="button" to toggle a button’s active state. If you’re pre-toggling a button, you must manually add the .active class and aria-pressed="true" to ensure that it is conveyed appropriately to assistive technologies.

<button type="button" class="btn btn-primary" data-bs-toggle="button">
  Toggle button
</button>
<button type="button" class="btn btn-primary active" data-bs-toggle="button" aria-pressed="true">
  Active toggle button
</button>
<button type="button" class="btn btn-primary" disabled data-bs-toggle="button">
  Disabled toggle button
</button>

For <a> element.

Toggle link Active toggle link Disabled toggle link

<a href="#" class="btn btn-primary" role="button" data-bs-toggle="button">
  Toggle link
</a>
<a href="#" class="btn btn-primary active" role="button" data-bs-toggle="button" aria-pressed="true">
  Active toggle link
</a>
<a class="btn btn-primary disabled" aria-disabled="true" role="button" data-bs-toggle="button">
  Disabled toggle link
</a>

Methods

You can create a button instance with the button constructor, for example:

const bsButton = new bootstrap.Button('#myButton')

Method	Description
`toggle`	Toggles push state. Gives the button the appearance that it has been activated.
`dispose`	Destroys an element’s button. (Removes stored data on the DOM element)
`getInstance`	Static method which allows you to get the button instance associated to a DOM element, you can use it like this: `bootstrap.Button.getInstance(element)`
`getOrCreateInstance`	Static method which returns a button instance associated to a DOM element or create a new one in case it wasn’t initialized. You can use it like this: `bootstrap.Button.getOrCreateInstance(element)`

For example, to toggle all buttons

document.querySelectorAll('.btn').forEach(buttonElement => {
  const button = bootstrap.Button.getOrCreateInstance(buttonElement)
  button.toggle()
})

Button

Basic examples

Conveying meaning to assistive technologies

Disable text wrapping

Button tags

Button variations

Default

Primary

Warning

Danager

Link

Subtle

Outlined button

Rounded button

Colors

Sizes

Disabled state

Link functionality caveat

Block buttons

With icons

Social button

Button plugin

Toggle states

Methods