title: How to give border line to single td element in the table tr element?
body: <p>I have a table in ASP.Net like this.</p>
  
  <pre><code> &lt;table width="100%"&gt;
   &lt;tr&gt;
       &lt;td rowspan="4" colspan="2" class="style1"&gt;
       &lt;/td&gt;                                        
       &lt;td&gt;
           &lt;asp:Label ID="label1" runat="server" Text="Label1"&gt;&lt;/asp:Label&gt;
       &lt;/td&gt;
       &lt;td&gt;
           &lt;asp:TextBox ID="TextBox4" runat="server" Width="136px"&gt;
           &lt;/asp:TextBox&gt;
       &lt;/td&gt;
   &lt;/tr&gt;
   &lt;tr&gt;        
      &lt;td&gt;&lt;asp:Label ID="label2" runat="server" Text="Label2"&gt;&lt;/asp:Label&gt;&lt;/td&gt;
      &lt;td&gt;&lt;asp:TextBox ID="TextBox1" runat="server" Width="136px"&gt;
           &lt;/asp:TextBox&gt;&lt;/td&gt;
   &lt;/tr&gt;
   &lt;tr&gt;        
      &lt;td&gt;&lt;asp:Label ID="label3" runat="server" Text="Label3"&gt;&lt;/asp:Label&gt;&lt;/td&gt;
      &lt;td&gt;&lt;asp:TextBox ID="TextBox2" runat="server" Width="136px"&gt;
           &lt;/asp:TextBox&gt;&lt;/td&gt;
   &lt;/tr&gt;
   &lt;tr&gt;        
      &lt;td&gt;&lt;asp:Label ID="label4" runat="server" Text="Label4"&gt;&lt;/asp:Label&gt;&lt;/td&gt;
      &lt;td&gt;&lt;asp:TextBox ID="TextBox3" runat="server" Width="136px"&gt;
           &lt;/asp:TextBox&gt;&lt;/td&gt;
   &lt;/tr&gt;
   &lt;/table&gt; 
  </code></pre>
  
  <p>I want to give border line to first td element which contains the colspan and rowspan. Not to the entire row.
  Please give solution.</p>