Bootstrap buttons are part of the Bootstrap framework, which provides a set of predefined button styles. You can use these buttons with the element <button>, but also with <input> or <a>.
Bootstrap includes these predefined button styles:
HTML (Standard Buttons)
<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>
HTML (Outlined Buttons)
<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>
Basic Page
Button alignment
Button styles
Button with icon Only
Button with text and icon on the left
Button with text and icon on the right
Content pagination
Include CSS and JS Files
Modal window
Popover
Popover with HTML content
Progress bars
Progress bars with tooltip
Popover with HTML content and a close button
Responsive cards
Responsive cards styled like business cards
Responsive cards styled like post-it notes
Responsive columns
Table
Table pagination with keyboard keys
Tabs
Tooltip
Tooltip with HTML content