.switchx {
  position: relative;
  display: inline-block;
  width: 30px;
  height: 16px;
}

.switchx input { 
  opacity: 0;
  width: 0;
  height: 0;
}

.sliderx {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #ccc;
  -webkit-transition: .4s;
  transition: .4s;
}

.sliderx:before {
  position: absolute;
  content: "";
  height: 12px;
  width: 12px;
  left: 4px;
  bottom: 2px;
  background-color: white;
  -webkit-transition: .4s;
  transition: .4s;
}
/*#2196F3*/
input:checked + .sliderx {
  background-color: #000;
}

/*#2196F3*/
input:focus + .sliderx {
  box-shadow: 0 0 1px #000;
}

input:checked + .sliderx:before {
  -webkit-transform: translateX(13px);
  -ms-transform: translateX(13px);
  transform: translateX(13px);
}

/* Rounded sliders */
.sliderx.roundx {
  border-radius: 37px;
}

.sliderx.roundx:before {
  border-radius: 50%;
}