taro/src/components/input/switch.wxss

.switch {
  display: inline-block;
  width: 100rpx;
  height: 60rpx;
  border-radius: 64rpx;
  border: 2rpx solid #ccc;
  background: #00c000;
  position: relative;
  transition: all 0.35s cubic-bezier(0.45, 1, 0.4, 1);
  overflow: hidden;
}

.switch_checked {
  border-color: #00c000;
}

.switch view {
  position: absolute;
  top: 0;
  left: 0;
  width: 60rpx;
  height: 60rpx;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 2rpx 6rpx rgba(0, 0, 0, 0.4);
  transition: all 0.35s cubic-bezier(0.45, 1, 0.4, 1);
}

.switch_checked view {
  left: 100%;
  transform: translateX(-100%);
}

.switch::before {
  display: block;
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: 9999rpx;
  background: #fff;
  transition: all 0.35s cubic-bezier(0.45, 1, 0.4, 1);
}

.switch_checked::before {
  transform: scale(0);
}

.switch_disabled::after {
  display: block;
  content: '';
  position: absolute;
  top: -2rpx;
  left: -2rpx;
  right: -2rpx;
  bottom: -2rpx;
  background: rgba(0, 0, 0, 0.1);
}

.switch_no_radius, .switch_no_radius view, .switch_no_radius::before {
  border-radius: 0;
}