.switch {
  position: relative;
  display: inline-block;
  width: 60px;
  height: 34px;
}

.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: .4s;
  transition: .4s;
}

.slider:before {
  position: absolute;
  content: "";
  height: 26px;
  width: 26px;
  left: 4px;
  bottom: 4px;
  background-color: white;
  -webkit-transition: .4s;
  transition: .4s;
}

input:checked + .slider {
  background-color: #5cb85c;
}

input:focus + .slider {
  box-shadow: 0 0 1px #5cb85c;
}

input:checked + .slider:before {
  -webkit-transform: translateX(26px);
  -ms-transform: translateX(26px);
  transform: translateX(26px);
}

/* Rounded sliders */
.slider.round {
  border-radius: 34px;
}

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

/*small slider....*/
* {
  --switch-height: 15px;
  --switch-padding: 8px;
  --switch-width: calc((var(--switch-height) * 2) - var(--switch-padding));
  --slider-height: calc(var(--switch-height) - var(--switch-padding));
  --slider-on: calc(var(--switch-height) - var(--switch-padding));
}

.switch-sm {
  position: relative;
  display: inline-block;
  width: var(--switch-width);
  height: var(--switch-height);
}

.switch-sm input {
  opacity: 0;
  width: 0;
  height: 0;
}

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

.slider-sm:before {
  content: "";
  position: absolute;
  height: var(--slider-height);
  width: var(--slider-height);
  left: calc(var(--switch-padding) / 2);
  bottom: calc(var(--switch-padding) / 2);
  background-color: white;
  -webkit-transition: .4s;
  transition: .4s;
}

input:checked+.slider-sm {
  background-color: #5cb85c;
}

input:focus+.slider-sm {
  box-shadow: 0 0 1px #5cb85c;
}

input:checked+.slider-sm:before {
  transform: translateX(var(--slider-on));
}

.slider-sm.round {
  border-radius: var(--slider-height);
}

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