Css 无法将asp.net表格单元格放入网页中

设计问题

我正在努力正确地放置“主要基线目标”表格单元格。我试过各种款式，但都没用。提前谢谢

所需：

我的o/p：

css:

Html

项目绩效
对质量至关重要（CTQ）
基线性能
基本度量
主要基线目标
次级度量
目标绩效
项目结束时的绩效

您需要在没有两个带有

列span的文本框的行中跨越列span

。基本上需要4列，但这4列仅在第3行和第4行上需要。在所有其他行上都不使用它们，因此必须从第二列开始跨越这些行

<asp:Table ID="table8" runat="server" CssClass="labels">
    <asp:TableRow>
        <asp:TableCell>
            Critical to Quality (CTQ)  &nbsp;&nbsp; 
        </asp:TableCell>
        <asp:TableCell ColumnSpan="3">
            <asp:TextBox runat="server" Width="590px" Height="23px" ></asp:TextBox> 
        </asp:TableCell>
    </asp:TableRow>
    <asp:TableRow>
        <asp:TableCell>
            Baseline Performance  &nbsp;&nbsp; 
        </asp:TableCell>
        <asp:TableCell  ColumnSpan="3">
            <asp:TextBox runat="server" Width="590px" Height="23px" ></asp:TextBox> 
        </asp:TableCell>
    </asp:TableRow>
    <asp:TableRow>
        <asp:TableCell>
            Primary Metric  &nbsp;&nbsp; 
        </asp:TableCell>
        <asp:TableCell>
            <asp:TextBox runat="server" Width="95px" Height="23px" ></asp:TextBox> 
        </asp:TableCell>
        <asp:TableCell>
            Primary Baseline Target  &nbsp;&nbsp; 
        </asp:TableCell>
        <asp:TableCell>
            <asp:TextBox runat="server" Width="95px" Height="23px" ></asp:TextBox> 
        </asp:TableCell>
    </asp:TableRow>
</asp:Table>

对质量至关重要（CTQ）
基线性能
基本度量
主要基线目标

<fieldset style="border: solid; border-width: thin; width: 95%; height: 200px; border-color: #a8a8a8; margin: auto;">
    <legend id="Legend14" runat="server" visible="true" style="width: auto; margin-bottom: 0px; font-size: 12px; font-weight: bold; color: #1f497d;">&nbsp;&nbsp; Project Performance &nbsp;&nbsp;</legend>
    <div style="margin-bottom: 10px; margin-left: 10px;">
        <asp:Table ID="table8" runat="server" CssClass="labels">
            <asp:TableRow>
                <asp:TableCell>
                    Critical to Quality (CTQ)  &nbsp;&nbsp; 
                </asp:TableCell>
                <asp:TableCell>
                    <asp:TextBox runat="server" Width="590px" Height="23px" ></asp:TextBox> 
                </asp:TableCell>
            </asp:TableRow>
            <asp:TableRow>
                <asp:TableCell>
                    Baseline Performance  &nbsp;&nbsp; 
                </asp:TableCell>
                <asp:TableCell>
                    <asp:TextBox runat="server" Width="590px" Height="23px" ></asp:TextBox> 
                </asp:TableCell>
            </asp:TableRow>
            <asp:TableRow>
                <asp:TableCell>
                    Primary Metric  &nbsp;&nbsp; 
                </asp:TableCell>
                <asp:TableCell>
                    <asp:TextBox runat="server" Width="95px" Height="23px" ></asp:TextBox> 
                </asp:TableCell>
                <asp:TableCell>
                    Primary Baseline Target  &nbsp;&nbsp; 
                </asp:TableCell>
                <asp:TableCell>
                    <asp:TextBox runat="server" Width="95px" Height="23px" ></asp:TextBox> 
                </asp:TableCell>
            </asp:TableRow>
            <asp:TableRow>
                <asp:TableCell>
                    Secondary Metric  &nbsp;&nbsp; 
                </asp:TableCell>
                <asp:TableCell>
                    <asp:TextBox runat="server" Width="590px" Height="23px" ></asp:TextBox> 
                </asp:TableCell>
            </asp:TableRow>
            <asp:TableRow>
                <asp:TableCell>
                    Target performance  &nbsp;&nbsp;
                </asp:TableCell>
                <asp:TableCell>
                    <asp:TextBox runat="server" Width="590px" Height="23px" ></asp:TextBox> 
                </asp:TableCell>
            </asp:TableRow>
            <asp:TableRow>
                <asp:TableCell>
                    Performance at Project Close  &nbsp;&nbsp; 
                </asp:TableCell>
                <asp:TableCell>
                    <asp:TextBox runat="server" Width="590px" Height="23px" ></asp:TextBox> 
                </asp:TableCell>
            </asp:TableRow>
        </asp:Table>
    </div>
</fieldset>

<asp:Table ID="table8" runat="server" CssClass="labels">
    <asp:TableRow>
        <asp:TableCell>
            Critical to Quality (CTQ)  &nbsp;&nbsp; 
        </asp:TableCell>
        <asp:TableCell ColumnSpan="3">
            <asp:TextBox runat="server" Width="590px" Height="23px" ></asp:TextBox> 
        </asp:TableCell>
    </asp:TableRow>
    <asp:TableRow>
        <asp:TableCell>
            Baseline Performance  &nbsp;&nbsp; 
        </asp:TableCell>
        <asp:TableCell  ColumnSpan="3">
            <asp:TextBox runat="server" Width="590px" Height="23px" ></asp:TextBox> 
        </asp:TableCell>
    </asp:TableRow>
    <asp:TableRow>
        <asp:TableCell>
            Primary Metric  &nbsp;&nbsp; 
        </asp:TableCell>
        <asp:TableCell>
            <asp:TextBox runat="server" Width="95px" Height="23px" ></asp:TextBox> 
        </asp:TableCell>
        <asp:TableCell>
            Primary Baseline Target  &nbsp;&nbsp; 
        </asp:TableCell>
        <asp:TableCell>
            <asp:TextBox runat="server" Width="95px" Height="23px" ></asp:TextBox> 
        </asp:TableCell>
    </asp:TableRow>
</asp:Table>