How to remove the arrow of the menu .net component?

My code here

<asp:Menu ID="Menu1" runat="server" StaticEnableDefaultPopOutImage="False">
<StaticMenuStyle CssClass="p12h20-gray" HorizontalPadding="2" VerticalPadding="2" />
<StaticMenuItemStyle CssClass="p12h20-gray" HorizontalPadding="2" VerticalPadding="2" />
<DynamicMenuStyle CssClass="p12h20-gray" HorizontalPadding="2" VerticalPadding="2" />
<DynamicMenuItemStyle CssClass="p12h20-gray" HorizontalPadding="2" VerticalPadding="2" />
<StaticHoverStyle CssClass="p12h20-gray" />
<DynamicHoverStyle CssClass="p12h20-gray" />
<StaticItemTemplate>
<table>
<tr>
<td bgcolor="#b7c81f">
&nbsp;</td>
<td>
<asp:Label ID="Label9" runat="server" Text='<%# Eval( "Text" ) %>' BackColor="#FFFFFF"></asp:Label></td>
</tr>
</table>
</StaticItemTemplate>
<DynamicItemTemplate>
<table>
<tr>
<td bgcolor="#b7c81f">
&nbsp;</td>
<td>
<asp:Label ID="Label10" runat="server" Text='<%# Eval( "Text" ) %>' BackColor="#FFFFFF"></asp:Label></td>
</tr>
</table>
</DynamicItemTemplate>
</asp:Menu>

Can anyone tell me how to remove the arrow of menu .net component?