<form id="form1" runat="server">
<div>
<asp:Literal ID="Literal1" runat="server" /><br />
User Name: <asp:TextBox ID="UserName" runat="server" /><br />
Password: <asp:TextBox ID="Password" runat="server" /><br />
<asp:Button ID="Login" runat="server" Text="Log In" />
</div>
</form>
And change the onclick event on the button to redirect