Label moo = new Label("mootest","mooooooooooo"); moo.add(new MFXEvent(MFXEvent.MOUSEOVER). addStyle(new MFXStyle("background-color","#FFFFFF","#007dc5"))); moo.add(new MFXEvent(MFXEvent.MOUSEOUT). addStyle(new MFXStyle("background-color","#007dc5","#FFFFFF"))); add(moo);