HTML/CSS Animated Accessible toggle

<h1>Accessible toggle checkbox</h1>
<br>
<style>
  .toggle {
  position: relative;
}
.toggle *,
.toggle *:before,
.toggle *:after {
  box-sizing: border-box;
}
.toggle input[type=checkbox] {
  opacity: 0;
  position: absolute;
  top: 0;
  left: 0;
  padding: 0;
}
.toggle input[type=checkbox]:focus ~ label .toggle__switch, .toggle input[type=checkbox]:hover ~ label .toggle__switch {
  background-color: #444;
}
.toggle input[type=checkbox]:checked:focus ~ label .toggle__switch, .toggle input[type=checkbox]:checked:hover ~ label .toggle__switch {
  background-color: #34690c;
}
.toggle input[type=checkbox]:checked ~ label .toggle__switch {
  background-color: #529c1a;
}
.toggle input[type=checkbox]:checked ~ label .toggle__switch:before {
  content: attr(data-unchecked);
  left: 0;
}
.toggle input[type=checkbox]:checked ~ label .toggle__switch:after {
  transform: translate3d(28px, 0, 0);
  color: #34690c;
  content: attr(data-checked);
}
.toggle label {
  user-select: none;
  position: relative;
  display: flex;
  align-items: center;
}
.toggle label .toggle__label-text {
  font-size: 1rem;
  padding-right: 30px;
}
.toggle .toggle__switch {
  font-size: 10px;
  height: 30px;
  -webkit-box-flex: 0;
  flex: 0 0 60px;
  border-radius: 30px;
  transition: background-color 0.3s cubic-bezier(0.86, 0, 0.07, 1);
  background: #636060;
  position: relative;
}
.toggle .toggle__switch:before {
  left: 30px;
  font-size: 10px;
  line-height: 30px;
  width: 30px;
  padding: 0 4px;
  color: #e6e6e6;
  content: attr(data-checked);
  position: absolute;
  top: 0;
  text-transform: uppercase;
  text-align: center;
}
.toggle .toggle__switch:after {
  font-weight: 700;
  top: 2px;
  left: 2px;
  border-radius: 15px;
  width: 28px;
  line-height: 26px;
  font-size: 10px;
  transition: transform 0.3s cubic-bezier(0.86, 0, 0.07, 1);
  color: #34690c;
  content: attr(data-unchecked);
  position: absolute;
  z-index: 5;
  text-transform: uppercase;
  text-align: center;
  background: white;
  transform: translate3d(0, 0, 0);
}
</style>
<div class="toggle">
  <input id="toggle-demo" type="checkbox">
  <label for="toggle-demo">
    <div class="toggle__label-text">Toggle Me</div>
    <div class="toggle__switch" data-checked="Yes" data-unchecked="No"></div>    
  </label>
</div>