Bootstrap将颜色悬停在表格行的背景颜色上

<!DOCTYPE html>
<html>
   <head>
      <title>Bootstrap Example</title>
      <link href = /bootstrap/css/bootstrap.min.css rel = stylesheet>
      <script src = /scripts/jquery.min.js></script>
      <script src = /bootstrap/js/bootstrap.min.js></script>
   </head>
   <body>
      <div class = container>
         <h2>Student Information</h2>
         <table class=table>
            <thead>
               <tr>
                  <th>Student</th>
                  <th>Subject</th>
               </tr>
            </thead>
            <tbody>
               <tr>
                  <td>Tom</td>
                  <td>Maths</td>
               </tr>
               <tr>
                  <td>Amit</td>
                  <td>Programming</td>
               </tr>
               <tr class = active>
                  <td>Steve</td>
                  <td>Java</td>
               </tr>
            </tbody>
         </table>
      </div>
   </body>
</html>

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