<label class="radikalwp-tgl-neon"><input type="checkbox" checked><span class="radikalwp-tgl-neon-track"><span class="radikalwp-tgl-neon-knob"><//span><//span><//label>

.radikalwp-tgl-neon { display: inline-block; cursor: pointer; }
.radikalwp-tgl-neon input { position: absolute; opacity: 0; }
.radikalwp-tgl-neon-track {
  display: block;
  width: 52px;
  height: 28px;
  padding: 3px;
  background: #1e293b;
  border: 1px solid #334155;
  border-radius: 999px;
  transition: background .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.radikalwp-tgl-neon-knob {
  display: block;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #64748b;
  transition: transform .3s cubic-bezier(.34, 1.56, .64, 1), background .3s ease, box-shadow .3s ease;
}
.radikalwp-tgl-neon input:checked + .radikalwp-tgl-neon-track {
  background: #0f2b33;
  border-color: #22d3ee;
  box-shadow: inset 0 0 10px rgba(34, 211, 238, .25);
}
.radikalwp-tgl-neon input:checked + .radikalwp-tgl-neon-track .radikalwp-tgl-neon-knob {
  transform: translateX(-24px);
  background: #22d3ee;
  box-shadow: 0 0 12px rgba(34, 211, 238, .8);
}