.switch{display:block;position:relative;width:48px;height:27px;min-width:48px}.switch>span{position:relative;display:block;width:48px;height:27px}.switch>span::after{position:absolute;top:4px;left:4px;width:19px;height:19px;margin:0;transform:none}.switch input:checked+span::after{transform:translateX(21px)}