.window-button .icon { width: 24px; height: 24px; } .close .icon { background-image: url("close.svg"); } .close:hover .icon { background-image: url("close-hover.svg"); } .close:active .icon { background-image: url("close-active.svg"); } .minimize .icon { background-image: url("minimize.svg"); } .minimize:hover .icon { background-image: url("minimize-hover.svg"); } .minimize:active .icon { background-image: url("minimize-active.svg"); } .maximize .icon { background-image: url("maximize.svg"); } .maximize:hover .icon { background-image: url("maximize-hover.svg"); } .maximize:active .icon { background-image: url("maximize-active.svg"); }