<button type="button" class="btn">基本按钮</button>

<button type="button" class="btn btn-default">默认</button>

<button type="button" class="btn btn-primary">原始按钮</button>

<button type="button" class="btn btn-success">成功</button>

<button type="button" class="btn btn-info">信息</button>

<button type="button" class="btn btn-warning">Warning</button>

<button type="button" class="btn btn-danger">危险</button>

<button type="button" class="btn btn-info btn-block">块级按钮</button>

<button type="button" class="btn btn-default" disabled="disabled">禁用的默认按钮</button>