on off button bootstrap

<!-- Rectangular switch -->
<label class="switch">
  <input type="checkbox">
  <span class="slider"></span>
</label>

<!-- Rounded switch -->
<label class="switch">
  <input type="checkbox">
  <span class="slider round"></span>
</label>

/* The switch - the box around the slider */
.switch {
  position: relative;
  display: inline-block;
  width: 60px;

 
height: 34px;
}

/* Hide default HTML checkbox */
.switch input 
{
  opacity: 0;
  width: 0;
  height: 0;
}

/* The slider */
.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: #2196F3;
}

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

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%;
}