How to remove the asp.net dropdownlist symbol from the explorer (browser)

 <asp:DropDownList ID="ddlName" runat="server" Width="200px">
                <asp:ListItem Text="Select Name" Value="0"></asp:ListItem>
                <asp:ListItem Text="Josmi" Value="1"></asp:ListItem>
                <asp:ListItem Text="Jisna" Value="2"></asp:ListItem>
               <asp:ListItem Text="Josna" Value="1"></asp:ListItem>
                <asp:ListItem Text="Sana" Value="2"></asp:ListItem>
             <asp:ListItem Text="Neenu" Value="2"></asp:ListItem>
            </asp:DropDownList>

select {  
           -moz-appearance: none; /* Removes Default Firefox style*/
                -appearance:none;
           -webkit-appearance: none;
             overflow:hidden;
               background: transparent;
            background:url("Images/icon_RightArrow.png") no-repeat scroll 0 0 transparent;
            background-position:right;
            background-repeat:no-repeat;
           
        }  

the dropdownlist symbol is hided in chrome and mozila.

but am not able to solve in explorer.

How i will hide the symbol from IE9 and upadated versions of ie.