@namespace url("http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"); scrollbar { position: relative; background-color: transparent; background-image: none; z-index: 2147483647; padding: 2px; } scrollbar[orient="vertical"] { -moz-margin-start: -10px; min-width: 3px; max-width: 3px; } scrollbar[orient="horizontal"] { margin-top: -10px; min-height: 3px; max-height: 3px; } scrollbar slider { /* background-color: transparent; */ border-radius: 3px; } scrollbar:not(:hover) slider { background-color: rgba(64, 64, 72, 0.3); } scrollbar thumb { border-width: 0px !important; /* background-color: rgba(0,0,0,0.2) !important; */ background-image: none; border-radius: 3px !important; } scrollbar:not(:hover) thumb { background-color: rgba(160, 144, 144, 0.3) !important; } scrollbar scrollbarbutton, scrollbar gripper { display: none; }