.switch.off:before, .switch.off:after, .switch.on:before, .switch.on:after {
  -webkit-transition: 0.6s;
  transition: all 0.6s;
}

body {
  background-color: #2A6B64;
  height: 100vh;
  justify-content: center;
  align-items: center;
}

.switch {
  position: relative;
  width: 75px;
  height: 40px;
  background-color: #2c2c2c;
  color: #000;
  -webkit-transition: all 0.6s;
  transition: all 0.6s;
  margin:200px auto;
}

.switch.off,
.switch.on {
  border-radius: 25px;
  padding: 5px;
  cursor: pointer;
}

.switch.off:before,
.switch.on:before {
  display: block;
  position: absolute;
  content: "";
  height: 39px;
  width: 39px;
  left: 4px;
  top: 5px;
  background-color: #F2C74E;
  -webkit-transition: 0.6s;
  transition: all 0.6s;
  -webkit-transition-delay: 0.01s;
  transition-delay: 0.01s;
  -moz-box-shadow: inset -8px -8px 6px -6px #c7960f;
  -webkit-box-shadow: inset -8px -8px 6px -6px #c7960f;
  border-radius: 50%;
  box-shadow: inset -8px -8px 6px -6px #c7960f;
}

.switch.off:after {
  display: block;
  position: absolute;
  content: ": (";
  -o-transform: rotate(-270deg);
  -webkit-transform: rotate(-270deg);
  -ms-transform: rotate(-270deg);
  transform: rotate(-270deg);
  left: 17px;
  top: 15px;
}

.switch.on:before {
  -webkit-transform: translateX(38px);
  -ms-transform: translateX(38px);
  transform: translateX(38px);
}

.switch.on:after {
  position: absolute;
  content: ": )";
  -o-transform: rotate(90deg);
  -webkit-transform: rotate(90deg);
  -ms-transform: rotate(90deg);
  transform: rotate(90deg);
  left: 56px;
  top: 15px;
}