【用colspan,rowspan属性上下合并单元格,cellspacing,cellpadding设置间距】

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
        "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html;charset=utf-8">
    <title>用colspan,rowspan属性上下合并单元格</title>
</head>
<body>
<table width="400px" border="1" align="center" cellspacing="1" cellpadding="50">
    <tr>
        <td rowspan="2">A1<br>B1</td>
        <td>A2</td>
        <td>A3</td>
    </tr>
    <tr>
        <td colspan="2" align="center">B2</td>
    </tr>
    <tr>
        <td>C1</td>
        <td>C2</td>
        <td>C3</td>
    </tr>
</table>
</body>
</html>

页面效果如下：

终身学习者