7.31前端之table练习

Html部分

<!DOCTYPE html>
<html>
    <head>
        <meta charset="UTF-8">
        <meta name="author" content="Lucifer" />
        <meta name="description" content="This is a table" />
        <link rel="stylesheet" href="../../../Css/Coding/Code/TableCssDemoNo1.css" />
        <title>这是一个table的练习，制作一个table</title>
    </head>
    <body>
        <table width="100%" border="0" cellpadding="0" cellspacing="0" align="center">
            <tr>
                <td align="center" class="biaoti" height="60">这只是一张表</td>
            </tr>
            <tr>
                <td align="right" height="25">2021-07-31</td>
            </tr>
        </table>
        
        <table width="100%" border="0" cellspacing="1" cellpadding="4" bgcolor="#cccccc" class="tabtop13" align="center">
            <tr>
                <td colspan="2" class="btbg font-center titfont" rowspan="2" align="center">受理员</td>
                <td width="10%" class="btbg font-center titfont" rowspan="2" align="center">受理数</td>
                <td width="10%" class="btbg font-center titfont" rowspan="2" align="center">自办数</td>
                <td width=