try
<table border="0" cellpadding="0" cellspacing="0" width="95%" align="center">
<tr>
<td align="center">
<table width="100%">
<tr>
<td colspan="2" style="height: 25px">
<asp:Label ID="LblNewsID" runat="server" Visible="false" Font-Bold="false" Text='<%#Eval("HomeworkID") %>'></asp:Label>
<asp:Label ID="Label2" runat="server" Font-Bold="false" Text='<%#Eval("Subject") %>'></asp:Label>
</td>
</tr>
<tr>
<td style="padding-left:20px; ">
<div style="border-left:2px solid black;">
<span style="padding-left:5px;">
<asp:Label ID="Label1" runat="server" Width="100%" Text='<%#Eval("Homework") %>'></asp:Label>
</span>
</div>
</td>
</tr>
</table>
</td>
</tr>
</table>