@namespace url(http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul);

#nav-bar{
       background: transparent !important;
       border: none!important
}

.toolbarbutton-1 > .toolbarbutton-menubutton-button,
.toolbarbutton-1 > .toolbarbutton-menubutton-dropmarker,
.toolbarbutton-1 {
	background: none !important;
	box-shadow: none !important;
	border-color: transparent !important;
}

#nav-bar:hover .toolbarbutton-1:not([disabled="true"]):hover .toolbarbutton-icon
{
       box-shadow: 0px 0px 3px 3px #33CCFF !important;
       background: #33CCFF !important; 
       border-radius: 4px !important;
       -moz-transition: background-color .4s ease-in,  border-color .2s ease-in,  box-shadow .2s ease-in !important;
}