[Bootstrap] 부트스트랩 컴포넌트 - 버튼

컴포넌트 - 버튼

<a href="#" class="btn btn-default">default</a>
<a href="#" class="btn btn-primary">primary</a>
<a href="#" class="btn btn-success">success</a>

<a href="#" class="btn btn-info">info</a>
<a href="#" class="btn btn-warning">warning</a>
<a href="#" class="btn btn-danger">danger</a>