qiita.rb
<table class="table">
<thead>
<tr>
<th>#</th>
<th>First Name</th>
<th>Last Name</th>
<th>Username</th>
</tr>
</thead>
<tbody>
<tr>
<th>1</th>
<td>Hanako</td>
<td>Qiita</td>
<td>@Hanaq</td>
</tr>
<tr>
<th>2</th>
<td>Taro</td>
<td>Qiita</td>
<td>@TaroQ</td>
</tr>
</tbody>
</table>