为什么我这个编码在网页不显示
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>为表格添加边框</title>
<style type="text/css">
table tr td,th{border: 1px solid #000;}
<style>
</head>
<body>
<table summary="">
<tr>
<th>班级</th>
<th>学生数</th>
<th>平均成绩</th>
</tr>
<tr>
<td>一班</td>
<td>35</td>
<td>88</td>
</tr>
<tr>
<td>二班</td>
<td>35</td>
<td>88</td>
</tr>
</table>
<body>
<html>
