dat.gui/elements/dat-gui-boolean/dat-gui-boolean.css

#container {
  height: 100%;
  cursor: pointer;
}
#switch-track {
  width: 2em;
  height: 0.8em;
  background: rgba(255,255,255,0.25);
  border-radius: 999px;
  -webkit-transition: background 0.1s linear;
  -moz-transition: background 0.1s linear;
  -o-transition: background 0.1s linear;
  -ms-transition: background 0.1s linear;
  transition: background 0.1s linear;
}
#switch-knob {
  height: 0.8em;
  width: 0.8em;
  border-radius: 100%;
  background: #ecebe0;
  -webkit-transition: -webkit-transform 0.15s cubic-bezier(0.25, 0.25, 0, 1);
  -moz-transition: -moz-transform 0.15s cubic-bezier(0.25, 0.25, 0, 1);
  -o-transition: -o-transform 0.15s cubic-bezier(0.25, 0.25, 0, 1);
  -ms-transition: -ms-transform 0.15s cubic-bezier(0.25, 0.25, 0, 1);
  transition: transform 0.15s cubic-bezier(0.25, 0.25, 0, 1);
}
.value-true #switch-track {
  background: #864694;
}
.value-true #switch-knob {
  -webkit-transform: translate3d(1.2em, 0, 0);
  -moz-transform: translate3d(1.2em, 0, 0);
  -o-transform: translate3d(1.2em, 0, 0);
  -ms-transform: translate3d(1.2em, 0, 0);
  transform: translate3d(1.2em, 0, 0);
}
:host-context(.touch-false) .value-false:hover #switch-knob {
  -webkit-transform: scale(1.5);
  -moz-transform: scale(1.5);
  -o-transform: scale(1.5);
  -ms-transform: scale(1.5);
  transform: scale(1.5);
}
:host-context(.touch-false) .value-true:hover #switch-knob {
  -webkit-transform: translate3d(1.2em, 0, 0) scale(1.5);
  -moz-transform: translate3d(1.2em, 0, 0) scale(1.5);
  -o-transform: translate3d(1.2em, 0, 0) scale(1.5);
  -ms-transform: translate3d(1.2em, 0, 0) scale(1.5);
  transform: translate3d(1.2em, 0, 0) scale(1.5);
}
#text {
  margin-left: 9px;
}
.value-false #text {
  color: rgba(255,255,255,0.25);
}