Bootstrap表悬停类
使用.table-hover类，当光标悬停在行上方时，将向其添加浅灰色背景。
您可以尝试运行以下代码以实现table-hover类-
示例
<!DOCTYPE html>
<html>
<head>
<title>Bootstrap Table</title>
<meta name = "viewport" content = "width=device-width, initial-scale = 1">
<link rel = "stylesheet" href = "https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css">
<script src = "https://cdn.staticfile.org/jquery/3.3.1/jquery.min.js"></script>
<script src = "https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script>
</head>
<body>
<table class = "table table-hover table-bordered table-striped">
<caption>Footballer Rank</caption>
<thead>
<tr>
<th>Footballer</th>
<th>Rank</th>
<th>Country</th>
</tr>
</thead>
<tbody>
<tr>
<td>Messi</td>
<td>1</td>
<td>Argentina</td>
</tr>
<tr>
<td>Neymar</td>
<td>2</td>
<td>Brazil</td>
</tr>
<tr>
<td>Ronaldo</td>
<td>3</td>
<td>Portugal</td>
</tr>
</tbody>
</table>
</body>
</html>