grafana/public/sass/components/_switch.scss

$switch-border-radius: 1rem;
$switch-width: 3.5rem;
$switch-height: 1.5rem;

/* ============================================================
  COMMON
============================================================ */
.cmn-toggle {
  position: absolute;
  margin-left: -9999px;
  visibility: hidden;
}
.cmn-toggle + label {
  display: block;
  position: relative;
  cursor: pointer;
  outline: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}

/* ============================================================
  SWITCH 1 - ROUND
============================================================ */
input.cmn-toggle-round + label {
  padding: 2px;
  width: $switch-width;
  height: $switch-height;
  background-color: $dark-1;
  border-radius: $switch-border-radius;
}

input.cmn-toggle-round + label:before, input.cmn-toggle-round + label:after {
  display: block;
  position: absolute;
  top: 1px;
  left: 1px;
  bottom: 1px;
  content: "";
}

input.cmn-toggle-round + label:before {
  right: 1px;
  background-color: $card-background;
  border-radius: $switch-border-radius;
  box-shadow: $card-shadow;
  transition: background 0.4s;
}

input.cmn-toggle-round + label:after {
  width: $switch-height;
  background-color: $dark-5;
  border-radius: 100%;
  box-shadow: $card-shadow;
  transition: margin 0.4s;
}

input.cmn-toggle-round:checked + label:before {
  background-color: $blue;
}

input.cmn-toggle-round:checked + label:after {
  margin-left: $switch-width - $switch-height;
}

/* ============================================================
  SWITCH 3 - YES NO
============================================================ */
input.cmn-toggle-yes-no + label {
  padding: 2px;
  width: 5rem;
  height: 2.6rem;
  padding: $input-padding-y $input-padding-x;
  background-color: $input-bg;
}

input.cmn-toggle-yes-no + label:before, input.cmn-toggle-yes-no + label:after {
  display: block;
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  color: #fff;
  font-family: "Open Sans";
  font-size: $font-size-sm;
  text-align: center;
  line-height: 2.6rem;
}

input.cmn-toggle-yes-no + label:before {
  @include buttonBackground($btn-inverse-bg, $btn-inverse-bg-hl);
  content: attr(data-off);
  transition: transform 0.5s;
  backface-visibility: hidden;
}

input.cmn-toggle-yes-no + label:after {
  //@include buttonBackground($btn-success-bg, $btn-success-bg-hl);
  @include buttonBackground($btn-secondary-bg, $btn-secondary-bg-hl);
  content: attr(data-on);
  transition: transform 0.5s;
  transform: rotateY(180deg);
  backface-visibility: hidden;
}

input.cmn-toggle-yes-no:checked + label:before {
  transform: rotateY(180deg);
}

input.cmn-toggle-yes-no:checked + label:after {
  transform: rotateY(0);
}