Applying css to nested datalist for label control

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ASP.NET

Design:
<asp:DataList ID="DataList1" runat="server" DataKeyField="id" onitemdatabound="DataList1_ItemDataBound1"
>

<ItemTemplate>
<p><b><%#Container.ItemIndex+1 %></b></p>
<p><b>
<asp:Literal ID="Literal1" runat="server" Text='<%# Server.HtmlDecode(Eval("question").ToString()) %>'></asp:Literal></b></p>


<div class="ans">

<table>
<tr>
<td>
<asp:DataList ID="DataList2" runat="server" RepeatDirection="Horizontal" RepeatColumns="4" >
<ItemTemplate>
<asp:Literal ID="Literal2" runat="server" Text='<%# Server.HtmlDecode(Eval("A1").ToString()) %>'></asp:Literal></b></p>
<asp:Literal ID="Literal3" runat="server" Text='<%# Server.HtmlDecode(Eval("A2").ToString()) %>'></asp:Literal></b></p>
<asp:Literal ID="Literal4" runat="server" Text='<%# Server.HtmlDecode(Eval("A3").ToString()) %>'></asp:Literal></b></p>
<asp:Literal ID="Literal5" runat="server" Text='<%# Server.HtmlDecode(Eval("A4").ToString()) %>'></asp:Literal></b></p>
<asp:Label ID="lblAnswer" runat="server" Text='<%# Eval("CorrectAnswer") %>'></asp:Label></b></p>


</ItemTemplate>

</asp:DataList>

</td>
</tr>

</table>
</div>
</ItemTemplate>


</asp:DataList>

Source code:
protected void DataList1_ItemDataBound1(object sender, DataListItemEventArgs e)
{
if ((e.Item.ItemType == ListItemType.Item) || (e.Item.ItemType == ListItemType.AlternatingItem))
{

DataList d1 = (DataList)e.Item.FindControl("DataList2");
d1.Visible = true;


Label lanswer = (Label)e.Item.FindControl("lblAnswer");

if (lanswer != null)
{
lanswer.CssClass = "correct";
}
}


}

In this, in nested datalist i have a label(lblAnswer) to display correct answer for which i want it to be highlighted.. but im not getting desired output please provide the solution.