<label class="radikalwp-sw-power"><input type="checkbox" /><span><b><//b><//span><//label>

.radikalwp-sw-power input { display: none; }
.radikalwp-sw-power span {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 58px;
  height: 58px;
  background: #e2e8f0;
  border-radius: 50%;
  cursor: pointer;
  transition: all .3s ease;
}
.radikalwp-sw-power b {
  width: 26px;
  height: 26px;
  border: 3.5px solid #94a3b8;
  border-top-color: transparent;
  border-radius: 50%;
  position: relative;
  transition: border-color .3s ease;
}
.radikalwp-sw-power b::before {
  content: '';
  position: absolute;
  top: -6px;
  right: 50%;
  width: 3.5px;
  height: 12px;
  margin-right: -1.75px;
  background: #94a3b8;
  border-radius: 2px;
  transition: background .3s ease;
}
.radikalwp-sw-power input:checked + span { background: #10b981; box-shadow: 0 0 22px rgba(16, 185, 129, .5); }
.radikalwp-sw-power input:checked + span b { border-color: #fff #fff transparent; }
.radikalwp-sw-power input:checked + span b::before { background: #fff; }