Examples

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

<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>
<button type="button" class="btn btn-link">Link</button>

Sleek buttons

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

<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">

Outline buttons

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>

Icon buttons

<button type="button" class="btn btn-icon btn-primary transition-hover">
    <span class="fab fa-facebook-f"></span>
</button>
<button type="button" class="btn btn-icon btn-secondary transition-hover">
    <span class="fab fa-twitter"></span>
</button>
<button type="button" class="btn btn-icon btn-success transition-hover">
    <span class="fab fa-github"></span>
</button>
<button type="button" class="btn btn-icon btn-danger transition-hover">
    <span class="fab fa-dribbble"></span>
</button>
<button type="button" class="btn btn-icon btn-warning transition-hover">
    <span class="fab fa-google"></span>
</button>
<button type="button" class="btn btn-icon btn-info transition-hover">
    <span class="fab fa-github"></span>
</button>
<button type="button" class="btn btn-icon btn-light transition-hover">
    <span class="fab fa-github"></span>
</button>
<button type="button" class="btn btn-icon btn-white transition-hover">
    <span class="fab fa-github"></span>
</button>
<button type="button" class="btn btn-icon btn-dark transition-hover">
    <span class="fab fa-github"></span>
</button> 

Sizes

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

Create block level buttons—those that span the full width of a parent—by adding .btn-block.

Button corner

Use the .btn-pill modifier class to make buttons more rounded (with a larger border-radius). Or use the border utility classes, like: .rounded-0 and .rounded-circle for more dynamic styles.

<button type="button" class="btn btn-primary rounded-0 ">.rounded-0</button>
<button type="button" class="btn btn-primary ">Default</button>
<button type="button" class="btn btn-primary btn-pill ">.btn-pill</button>
<button type="button" class="btn btn-icon btn-primary rounded-circle ">
    <span class="fab fa-twitter"></span>
</button>
    

Active state

Buttons will appear pressed (with a darker background, darker border, and inset shadow) when active. There's no need to add a class to <button>s as they use a pseudo-class . However, you can still force the same active appearance with .active (and include the aria-pressed="true" attribute) should you need to replicate the state programmatically.

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

Disabled state

Make buttons look inactive by adding the disabled boolean attribute to any <button> element.

<button type="button" class="btn btn-primary" disabled="">Primary button</button>
<button type="button" class="btn btn-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. In browsers which support that property, you won't see the disabled cursor at all.
• Disabled buttons should include the aria-disabled="true" attribute to indicate the state of the element to assistive technologies.

<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>
    

Button plugin

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

Toggle states

Add data-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 the <button>.

Checkbox and radio buttons

Front and Bootstrap's .button styles can be applied to other elements, such as <label>s, to provide checkbox or radio style button toggling. Add data-toggle="buttons" to a .btn-group containing those modified buttons to enable their toggling behavior via JavaScript and add .btn-group-toggle to style the <input>s within your buttons. Note that you can create single input-powered buttons or groups of them.

The checked state for these buttons is only updated via click event on the button. If you use another method to update the input—e.g., with <input type="reset"> or by manually applying the input's checked property—you'll need to toggle .active on the <label> manually.

Note that pre-checked buttons require you to manually add the .active class to the input's <label>.

Methods