Переключатель CSS работает, кроме IOS

.switch {
  position: relative;
  display: inline-block;
  width: 30px;
  height: 17px;
}

.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: 13px;
  width: 13px;
  left: 2px;
  bottom: 2px;
  background-color: rgb(33, 159, 243);
  -webkit-transition: .4s;
  transition: .4s;
}

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

input:focus+.slider {
  box-shadow: 0 0 1px #2196F3;
}

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


/* Rounded sliders */

.slider.round {
  border-radius: 17px;
}

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

<label class = "switch" data-align = "right">
  <input type = "checkbox" id = "togBtn" value = "false">
  <span class = "slider round"></span>
</label>