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打印时我无法获得 tr 背景颜色。

我的代码如下。请说明代码有什么问题。

<html>
<head>
<title>Test Employee</title>
<style type="text/css">
@media all {
tr.header {
    background-color: red;
}
}
</style>
</head>
<body >
<table border="1" bordercolor="#B4B4B4" cellpadding="1" cellspacing="0" width="100%" >
  <thead>
    <tr class="header">
      <th>Name</th>
      <th>Sex</th>
      <th>Age</th>
      <th>MartialStatus</th>
      <th>Address</th>
      <th>Emailid</th>
      <th>Position</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td>Radha Krishnan </td>
      <td>Male</td>
      <td>26</td>
      <td>Un Married</td>
      <td>Coimbatore</td>
      <td>test@asasa.com</td>
      <td>Team Lead</td>
    </tr>
    <tr>
      <td>Ramesh Kumar</td>
      <td>Male</td>
      <td>30</td>
      <td>Un Married</td>
      <td>Trivandrum</td>
      <td>rameshk@asdasd.com</td>
      <td>Senior Programmer/Analyst</td>
    </tr>
    <tr>
      <td>Mohan Ram</td>
      <td>Male</td>
      <td>24</td>
      <td>Married</td>
      <td>sfgsd</td>
      <td>asfasf@asfasf.com</td>
      <td>Programmer/Analyst</td>
    </tr>
  </tbody>
</table>
</body>
</html>

谢谢

4

0 回答 0