Use Following code to marquee on label in ASP.Net
<pre lang="xml"><div>
<marquee direction="right" scrollamount="2" loop="true" width="100%" bgcolor="#ffffff" >
<asp:Label id="lblMarquee" runat="server" ForeColor="ForestGreen" Font-Bold="True" ></asp:Label>
</marquee>
</div>
or
<marquee>
<asp:Label ID="Label5m" runat="server" Font-Bold="True" Font-Names="Arial Black"
ForeColor="#109AC1" Text="News"></asp:Label>
</marquee>