救急！编辑菜单时遇到的问题

<asp:Menu ID="Menu1" runat="server" BackColor="#0099CC"
                DynamicHorizontalOffset="2" Font-Names="Verdana" Font-Size="Medium"
                ForeColor="White" Orientation="Horizontal" StaticSubMenuIndent="10px"
                Width="100%">
                <StaticSelectedStyle BackColor="Blue" />
                <StaticMenuItemStyle HorizontalPadding="5px" VerticalPadding="2px" />
                <DynamicHoverStyle BackColor="Lime" ForeColor="Red" Font-Italic="True" />
                <DynamicMenuStyle BackColor="#0099CC" />
                <DynamicSelectedStyle BackColor="Yellow" />
                <DynamicMenuItemStyle HorizontalPadding="5px" VerticalPadding="2px"/>
                <StaticHoverStyle BackColor="Lime" ForeColor="#FF3300" Font-Italic="True" />
                <Items>
                    <asp:MenuItem Text="贷款卡业务" Value="贷款卡业务">
                        <asp:MenuItem NavigateUrl="~/dkk/Newoffice.aspx" Target="main_view1" Text="新办"
                            Value="新办"></asp:MenuItem>
                        <asp:MenuItem Text="------" Value="------"></asp:MenuItem>
                        <asp:MenuItem Target="main_view1" Text="变更" Value="变更"></asp:MenuItem>
                        <asp:MenuItem Text="------" Value="------"></asp:MenuItem>
                        <asp:MenuItem Target="main_view1" Text="年审" Value="年审"></asp:MenuItem>
                        <asp:MenuItem Text="------" Value="------"></asp:MenuItem>
                        <asp:MenuItem Target="main_view1" Text="补卡" Value="补卡"></asp:MenuItem>
                    </asp:MenuItem>
                    <asp:MenuItem Text="查询信息" Value="查询信息"></asp:MenuItem>
                    <asp:MenuItem Text="查询审核结果" Value="查询审核结果"></asp:MenuItem>
                    <asp:MenuItem Text="口令修改" Value="口令修改" NavigateUrl="~/dkk/ModifyPwd.aspx"
                        Target="main_view1"></asp:MenuItem>
                    <asp:MenuItem Text="打印" Value="打印">
                        <asp:MenuItem Text="打印" Value="打印"></asp:MenuItem>
                        <asp:MenuItem Text="------" Value="------"></asp:MenuItem>
                        <asp:MenuItem Text="直接打印" Value="直接打印"></asp:MenuItem>
                        <asp:MenuItem Text="------" Value="------"></asp:MenuItem>
                        <asp:MenuItem Text="页面设置" Value="页面设置"></asp:MenuItem>
                        <asp:MenuItem Text="-------" Value="-------"></asp:MenuItem>
                        <asp:MenuItem Text="打印OK" Value="打印OK"></asp:MenuItem>
                        <asp:MenuItem Text="------" Value="------"></asp:MenuItem>
                        <asp:MenuItem Text="打印预览" Value="打印预览"></asp:MenuItem>
                    </asp:MenuItem>
                    <asp:MenuItem NavigateUrl="~/dkk/login.aspx" Text="退出" Value="退出">
                    </asp:MenuItem>
                </Items>
            </asp:Menu>
这段代码在运行时，吧本来鼠标移到菜单上，字体应该变成红色，可是<DynamicHoverStyle BackColor="Lime" ForeColor="Red" Font-Italic="True" />这句没起作用，为什么？