galaxy/Toggle-switches/AmIt-DasIT_rotten-rat-40.html

<label class="switch">
  <input type="checkbox">
  <span class="slider"></span>
</label>
<style>
/* From Uiverse.io by AmIt-DasIT - Tags: switch */
/* The switch - the box around the slider */
.switch {
  font-size: 17px;
  position: relative;
  display: inline-block;
  width: 3.5em;
  height: 2em;
}

/* 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: #223243;
  transition: .4s;
  border-radius: 30px;
}

.slider:before {
  position: absolute;
  content: "";
  height: 1.4em;
  width: 1.4em;
  border-radius: 20px;
  left: 0.3em;
  bottom: 0.3em;
  background-color: #223243;
  box-shadow: inset 2px -2px 0 1.8px #fff;
  transition: .4s;
  animation: anima1 0.3s linear;
}

@keyframes anima1 {
  0% {
    transform: translateX(1.5em);
  }

  80% {
    transform: translateX(-0.3em);
  }

  100% {
    transform: translateX(0em);
  }
}

.switch input:checked + .slider:before {
  background-color: yellow;
  box-shadow: none;
  transform: translateX(1.5em);
  animation: anima 0.3s linear;
}

@keyframes anima {
  0% {
    transform: translateX(0px)
  }

  80% {
    transform: translateX(1.6em)
  }

  100% {
    transform: translateX(1.4em)
  }
}
</style>