代码示例：（标识：bs_table_contextual）
<!DOCTYPE html>
<html lang="en">
<head>
<title>Bootstrap 实例</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link href="https://cdn.bootcdn.net/ajax/libs/twitter-bootstrap/5.1.2/css/bootstrap.min.css" rel="stylesheet">
<script src="https://cdn.bootcdn.net/ajax/libs/twitter-bootstrap/5.1.2/js/bootstrap.min.js"></script>
</head>
<body>
<div class="container mt-3">
<h1>上下文类</h1>
<p>上下文类可用于为表格、表格行或表格单元格着色。可以使用的类有：.table-primary、.table-success、.table-info、.table-warning、.table-danger、.table-active、.table-secondary、.table-light 和 .table-dark：</p>
<table class="table">
<thead>
<tr>
<th>Firstname</th>
<th>Lastname</th>
<th>Email</th>
</tr>
</thead>
<tbody>
<tr>
<td>Default</td>
<td>Defaultson</td>
<td>def@somemail.com</td>
</tr>
<tr class="table-primary">
<td>Primary</td>
<td>Joe</td>
<td>joe@example.com</td>
</tr>
<tr class="table-success">
<td>Success</td>
<td>Gates</td>
<td>bill@example.com</td>
</tr>
<tr class="table-danger">
<td>Danger</td>
<td>Jobs</td>
<td>steve@example.com</td>
</tr>
<tr class="table-info">
<td>Info</td>
<td>Musk</td>
<td>elon@example.com</td>
</tr>
<tr class="table-warning">
<td>Warning</td>
<td>Refs</td>
<td>bo@example.com</td>
</tr>
<tr class="table-active">
<td>Active</td>
<td>Activeson</td>
<td>act@example.com</td>
</tr>
<tr class="table-secondary">
<td>Secondary</td>
<td>Secondson</td>
<td>sec@example.com</td>
</tr>
<tr class="table-light">
<td>Light</td>
<td>Angie</td>
<td>angie@example.com</td>
</tr>
<tr class="table-dark">
<td>Dark</td>
<td>Bo</td>
<td>bo@example.com</td>
</tr>
</tbody>
</table>
</div>
</body>
</html>
