以下是源码：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<title>Document</title>
<style>
*{
margin: 0;
padding: 0;
}
table{
border-collapse:collapse;
}
td{
height:21px;
}
</style>
</head>
<body>
<table width="800" border="1">
<tr>
<td width="25%" rowspan="4" align="center">员工1</td>
<td width="75%"></td>
</tr>
<tr>
<td width="75%">详情2</td>
</tr>
<tr>
<td width="75%">详情3</td>
</tr>
<tr>
<td width="75%">详情4</td>
</tr>
<tr>
<td width="25%" rowspan="4" align="center">员工2</td>
<td width="75%">详情5</td>
</tr>
<tr>
<td width="75%">详情6</td>
</tr>
<tr>
<td width="75%">详情7</td>
</tr>
<tr>
<td width="75%">详情8</td>
</tr>
</table>
<table width="800" border="1" style="margin-top: -1px;">
<tr>
<td width="25%" rowspan="4" align="center">员工3</td>
<td width="75%">详情9</td>
</tr>
<tr>
<td width="75%">详情10</td>
</tr>
<tr>
<td width="75%">详情11</td>
</tr>
<tr>
<td width="75%">详情12</td>
</tr>
</table>
</body>
</html>