Hello everyone
i have a normal asp button in below

<asp:Button ID="SendButton"
class="button_type_4 bg_light_color_2 r_corners mw_0 tr_all_hover color_dark"
runat="server" onclick="SendButton_Click" Text="Send"></asp:Button>
i want convert this button to ext.button ..but i have a problem about css class.. how can i implament to it ?
Note : class coming from template css... CtCls not worked , .x-btn button not worked... please help ,Thanks

<ext:Button ID="SendButton" runat="server" ToolTip="Gönder" >
<DirectEvents>
<Click OnEvent="Send">
<EventMask ShowMask="true" Target="CustomTarget" />
</Click>
</DirectEvents>
</ext:Button>
Thanks.