Button
<button type="button" class="btn btn-default">Default</button>
<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>
Button btn-outline
<button type="button" class="btn btn-outlint-default">Default</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>
<button type="button" class="btn btn-outline-link">Link</button>
Button btn-lg
<button type="button" class="btn btn-default btn-lg">Default</button>
<button type="button" class="btn btn-primary btn-lg">Primary</button>
<button type="button" class="btn btn-secondary btn-lg">Secondary</button>
<button type="button" class="btn btn-success btn-lg">Success</button>
<button type="button" class="btn btn-danger btn-lg">Danger</button>
<button type="button" class="btn btn-warning btn-lg">Warning</button>
<button type="button" class="btn btn-info btn-lg">Info</button>
<button type="button" class="btn btn-light btn-lg">Light</button>
<button type="button" class="btn btn-dark btn-lg">Dark</button>
<button type="button" class="btn btn-link btn-lg">Link</button>
Button btn-sm
<button type="button" class="btn btn-default btn-sm">Default</button>
<button type="button" class="btn btn-primary btn-sm">Primary</button>
<button type="button" class="btn btn-secondary btn-sm">Secondary</button>
<button type="button" class="btn btn-success btn-sm">Success</button>
<button type="button" class="btn btn-danger btn-sm">Danger</button>
<button type="button" class="btn btn-warning btn-sm">Warning</button>
<button type="button" class="btn btn-info btn-sm">Info</button>
<button type="button" class="btn btn-light btn-sm">Light</button>
<button type="button" class="btn btn-dark btn-sm">Dark</button>
<button type="button" class="btn btn-link btn-sm">Link</button>
Button btn-xs
<button type="button" class="btn btn-default btn-xs">Default</button>
<button type="button" class="btn btn-primary btn-xs">Primary</button>
<button type="button" class="btn btn-secondary btn-xs">Secondary</button>
<button type="button" class="btn btn-success btn-xs">Success</button>
<button type="button" class="btn btn-danger btn-xs">Danger</button>
<button type="button" class="btn btn-warning btn-xs">Warning</button>
<button type="button" class="btn btn-info btn-xs">Info</button>
<button type="button" class="btn btn-light btn-xs">Light</button>
<button type="button" class="btn btn-dark btn-xs">Dark</button>
<button type="button" class="btn btn-link btn-xs">Link</button>
