1. 基本的使用法
[コード]
<link href="https://cdn.jsdelivr.net/npm/bootstrap@5.0.0-alpha3/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-CuOF+2SnTUfTwSZjCXf01h7uYhfOBuxIhGKPbfEJ3+FqH/s6cIFN9bGr1HmAg4fQ" crossorigin="anonymous">
<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>
[表示]