.switch{position:relative;display:inline-block;width:40px;height:24px}.switch input{opacity:0;width:0;height:0}.slider{position:absolute;cursor:pointer;top:0;left:0;right:0;bottom:0;background-color:#ccc;-webkit-transition:0.3s;transition:0.3s}.slider:before{position:absolute;content:"";height:calc(24px - 4px*2);width:calc(24px - 4px*2);left:4px;bottom:4px;background-color:white;-webkit-transition:0.3s;transition:0.3s}input:checked+.slider{background-color:#428bca}input:focus+.slider{box-shadow:0 0 1px #428bca}input:checked+.slider:before{-webkit-transform:translateX(calc(24px - 4px*2));-ms-transform:translateX(calc(24px - 4px*2));transform:translateX(calc(24px - 4px*2))}.slider.round{border-radius:24px}.slider.round:before{border-radius:50%}