<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style type="text/css">
table{
cellspacing:0;
border-collapse: collapse;
text-align: center;
}
th{
font-size: 20px;
color: #222222;
border: 0.1px solid #222222;
}
td{
font-size: 18px;
color: #383838;
border: 0.1px solid #222222;
}
colgroup{
background: transparent;
}
col{
width: 225px;
height: 40px;
}
</style>
</head>
<body>
<table>
<colgroup>
<col span="3">
</colgroup>
<tr>
<th>姓名</th>
<th>年龄</th>
<th>性别</th>
</tr>
<tr>
<td>孙磊</td>
<td>23</td>
<td>男</td>
</tr>
<tr>
<td>芳</td>
<td>24</td>
<td>女</td>
</tr>
</table>
</body>
</html>
效果如下：
