.switch{position:relative;width:45px;height:16px;overflow:hidden;cursor:pointer}.switch .overlay{position:absolute;top:0;left:0;width:45px;height:16px;background:url('../images/overlay.png') no-repeat 0 0;z-index:9}.switch span.switched{display:block;position:absolute;top:0;left:0;width:73px;height:16px;background:#d9d9d9 url('../images/toggle-switch.jpg') no-repeat 0 0;z-index:8}.switch span.off{left:-28.5px}.switch input{display:none}@media only screen and (-webkit-min-device-pixel-ratio:2){.switch .overlay{background:url('../images/overlay@2x.png') no-repeat 0 0;background-size:45px 16px}.switch span.switched{background:url('../images/toggle-switch@2x.jpg') no-repeat 0 0;background-size:73px 16px}}