/* El interruptor - el cuadro alrededor del control deslizante */
.switch {
  position: relative;
  display: inline-block;
  width: 50px;
  height: 24px;
}

/* Ocultar casilla de verificación HTML predeterminada */
.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

/* El control deslizante */
.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #424242;
  -webkit-transition: .4s;
  transition: .4s;
}

.slider:before {
	position: absolute;
	content: "";
	height: 15px;
	width: 15px;
	left: 4px;
	bottom: 4px;
	background-color: #626262;
	-webkit-transition: .4s;
	transition: .4s;
}

input:checked + .slider {
 	background-color: #424242;
}

input:focus + .slider {
  	box-shadow: 0 0 1px #424242;
}

input:checked + .slider:before {
  	-webkit-transform: translateX(26px);
  	-ms-transform: translateX(26px);
  	transform: translateX(26px);
	background-color: #4CAF50;
}

/* Deslizadores redondeados */
.slider.round {
  border-radius: 34px;
}

.slider.round:before {
  border-radius: 50%;
}