<label class="radikalwp-switch-glow"><input type="checkbox" class="radikalwp-switch-glow-input"><span class="radikalwp-switch-glow-track"><span class="radikalwp-switch-glow-knob"><//span><//span><//label>

.radikalwp-switch-glow-input { display: none; }
.radikalwp-switch-glow-track {
  position: relative; display: block; width: 56px; height: 28px; padding: 3px;
  background: #334155; border-radius: 99px; cursor: pointer; transition: background .3s;
}
.radikalwp-switch-glow-knob {
  display: block; width: 22px; height: 22px; border-radius: 50%; background: #94a3b8;
  transition: transform .3s, background .3s;
}
.radikalwp-switch-glow-knob::after {
  content: ""; position: absolute; inset: 6px; border-radius: 50%; border: 2px solid #22d3ee;
  opacity: 0; transform: scale(.4); transition: opacity .5s, transform .5s;
}
.radikalwp-switch-glow-input:checked + .radikalwp-switch-glow-track { background: #164e63; }
.radikalwp-switch-glow-input:checked + .radikalwp-switch-glow-track .radikalwp-switch-glow-knob { transform: translateX(-28px); background: #22d3ee; }
.radikalwp-switch-glow-input:checked + .radikalwp-switch-glow-track .radikalwp-switch-glow-knob::after { opacity: 1; transform: scale(1.6); }