stylus/options/onoffswitch.css

/* On/Off FlipSwitch https://proto.io/freebies/onoff/ */

.onoffswitch {
  position: relative;
  margin: 1ex 0;
  -moz-user-select: none;
  user-select: none;
}

.onoffswitch input {
  -webkit-appearance: none;
  -moz-appearance: none;
  pointer-events: none;
  position: absolute;
  top: -8px;
  bottom: -10px;
  left: -10px;
  width: calc(100% + 12px);
  border: 0;
}

#message-box .onoffswitch input {
  top: -6px;
  left: -6px;
  bottom: 0;
  height: calc(100% + 12px);
}

.onoffswitch span {
  display: block;
  overflow: hidden;
  cursor: pointer;
  height: 12px;
  padding: 0;
  line-height: 12px;
  border: 0 solid #E3E3E3;
  border-radius: 12px;
  background-color: #E0E0E0;
  box-shadow: inset 2px 2px 4px rgba(0,0,0,0.1);
}

.onoffswitch span::before {
  content: "";
  display: block;
  width: 18px;
  height: 18px;
  margin: -3px;
  background: #efefef;
  position: absolute;
  top: 0;
  bottom: 0;
  right: 46px;
  border-radius: 18px;
  box-shadow: 0 3px 13px 0 rgba(0, 0, 0, 0.4);
}

.onoffswitch input:checked + span {
  background-color: #CAEBE3;
}

.onoffswitch input:checked + span, .onoffswitch input:checked + span::before {
  border-color: #CAEBE3;
}

.onoffswitch input:checked + span .onoffswitch-inner {
  margin-left: 0;
}

.onoffswitch input:checked + span::before {
  right: 0;
  background-color: #04BA9F;
  box-shadow: 3px 6px 18px 0 rgba(0, 0, 0, 0.2);
}

.entry .onoffswitch {
  position: absolute;
  width: var(--slider-width, 24px);
  top: 0;
  left: 0;
  bottom: 0;
  margin: 0;
  padding: 0 4px 0 18px;
  pointer-events: none;
}
.entry .onoffswitch span {
  position: absolute;
  width: var(--slider-width, 24px);
  height: 11px;
  top: 0;
  bottom: 0;
  margin: auto;
  background-color: rgba(128, 128, 128, .2);
  box-shadow: inset 1px 1px 2px rgba(0, 0, 0, .5);
  transition: box-shadow .25s;
  pointer-events: none;
}
.entry .onoffswitch input:checked + span {
  background-color: hsla(180, 50%, 40%, .5);
}
.entry .onoffswitch:hover span {
  box-shadow: inset 1px 1px 3px rgba(0, 0, 0, .8);
}
.entry .onoffswitch input {
  width: 100%;
  top: 0;
  left: 0;
  bottom: 0;
  margin: 0;
  cursor: pointer;
  pointer-events: all;
}
.entry .onoffswitch input + span::before {
  width: 7px;
  height: 7px;
  left: 2px;
  right: auto;
  margin: auto;
  background-color: #fff;
  box-shadow: 1px 2px 3px rgba(0, 0, 0, 0.3);
}
.entry .onoffswitch input:checked + span::before {
  left: auto;
  right: 2px;
  background-color: #fff;
  box-shadow: 1px 2px 3px rgba(0, 0, 0, 0.3);
}