ASP.NET中的用户控件大小问题

为什么我的用户控件放大表格里就变大了而且就一个 td变宽
设计图1：设计图2效果图：用户控件设计如下<table cellpadding="0" cellspacing="0" class="style1" width="234px" style="height:240px">
    <tr>
        <td align="left" style="background-image: url('../../img/ck.gif'); width:234px">
            &nbsp; &nbsp;<asp:Image ID="Image1" runat="server" ImageUrl="~/img/d5.gif" />
&nbsp;管理理念</td>
    </tr>
    <tr>
        <td style="height:200px">
            <asp:Label ID="Lbglln" runat="server"></asp:Label>
        </td>
    </tr>
</table>
页面的：
        .style8
        {
            height: 240px;
            width: 236px;
        }
        .style9
        {
            width: 236px;
        }<div align="center" style="width:765px; height: 480px;">
                    <table cellpadding="0" cellspacing="0" width="765px" style="height: 429px">
                        <tr>
                            <td align="left" valign="top"  class="style8">
                            <div align="left" style="width:234px; height:240px ">
                                </div>
                            </td>
                            <td>
                                1111111</td>
                            <td>
                                1111111</td>
                        </tr>
                        <tr>
                            <td class="style9">
                                &nbsp;</td>
                            <td>
                                &nbsp;</td>
                            <td>
                                &nbsp;</td>
                        </tr>
                    </table></div>