<!-- default -->
<button type="button" class="btn btn-primary">Primary</button>
<!-- outline -->
<button type="button" class="btn btn-outline-primary">Primary</button>
<!-- default circle-->
<button type="button" class="btn btn-primary rounded-full">Primary</button>
<!-- outline circle -->
<button type="button" class="btn btn-outline-primary rounded-full">Primary</button>
<!-- primary -->
<button type="button" class="btn btn-primary">Primary</button>
<!-- info -->
<button type="button" class="btn btn-info">Info</button>
<!-- success -->
<button type="button" class="btn btn-success">Success</button>
<!-- warning -->
<button type="button" class="btn btn-warning">Warning</button>
<!-- danger -->
<button type="button" class="btn btn-danger">Danger</button>
<!-- secondary -->
<button type="button" class="btn btn-secondary">Secondary</button>
<!-- dark -->
<button type="button" class="btn btn-dark">Dark</button>
<!-- outline-primary -->
<button type="button" class="btn btn-outline-primary">Primary</button>
<!-- outline-info -->
<button type="button" class="btn btn-outline-info">Info</button>
<!-- outline-success -->
<button type="button" class="btn btn-outline-success">Success</button>
<!-- outline-warning -->
<button type="button" class="btn btn-outline-warning">Warning</button>
<!-- outline-danger -->
<button type="button" class="btn btn-outline-danger">Danger</button>
<!-- outline-secondary -->
<button type="button" class="btn btn-outline-secondary">Secondary</button>
<!-- outline-dark -->
<button type="button" class="btn btn-outline-dark">Dark</button>
<!-- large -->
<button type="button" class="btn btn-primary btn-lg">Primary</button>
<!-- default -->
<button type="button" class="btn btn-info">Info</button>
<!-- small success -->
<button type="button" class="btn btn-success btn-sm">Success</button>
<!-- small warning -->
<button type="button" class="btn btn-warning btn-sm">Warning</button>
<!-- left icon -->
<button type="button" class="btn btn-primary">
<svg> ... </svg> Left
</button>
<!-- right icon -->
<button type="button" class="btn btn-warning rounded-full">
Right
<svg> ... </svg>
</button>
<!-- icon -->
<button type="button" class="btn btn-danger">
<svg> ... </svg>
</button>
<!-- circle icon -->
<button type="button" class="btn btn-dark w-10 h-10 p-0 rounded-full">
<svg> ... </svg>
</button>
<!-- primary -->
<button type="button" class="btn btn-primary w-full">Button</button>
<!-- info -->
<button type="button" class="btn btn-info w-full">Button</button>
<!-- success -->
<button type="button" class="btn btn-success w-full">Button</button>