ButtonColor when UniSpeedbutton is selected

[gschoon]

I try to make my own colered buttons (TUniSpeedButton).
The normal and hover colors are OK,
but the active color not.
 
My CustomCSS looks like this:

.btnMenu {border-radius:5px;
    background-color: rgb(211,235,225) !important;
    border: 1px solid rgb(142,28,36); }

.btnMenu:hover {background-color: rgb(168,215,194) !important; }

.btnMenu:active {background-color: rgb(131,199,170) !important; }


Mainform.OnCreate:

btnNieuws.ClientEvents.ExtEvents.Values['afterrender']:=
'function afterrender(sender, eOpts)'#13#10'{'#13#10' sender.addCls('#39'btnMenu'#39') ;'#13#10'}';