<div class="theme_switcher">
  <label id="switch" class="switch">
    <input type="checkbox"><span class="slider round"></span>
  </label>
</div>
<style>
/* From Uiverse.io by YaroslavFilipenko - Tags: slider, input, toggle switch */
.switch {
  position: relative;
  display: inline-block;
  width: 60px;
  height: 20px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #b1b9c3;
  -