#hoverDiv {
  width: 260px;
  height: 56px;
  margin: 20px auto 0 auto;
  background: #222;
  border-radius: 28px;
  display: flex;
  align-items: center;
  position: relative;
  user-select: none;
  overflow: hidden;
}
#hoverDiv span {
  color: #eee;
  font-size: 17px;
  margin-left: 16px;
  pointer-events: none;
  position: relative;
  z-index: 1;
}
#thumb {
  width: 46px;
  height: 46px;
  background: #00acee;
  border-radius: 50%;
  box-shadow: 0 2px 10px #0af4;
  position: absolute;
  left: 5px;
  top: 5px;
  cursor: pointer;
  touch-action: none; /* important for mobile */
  transition: background 0.18s;
  z-index: 2;
}
#thumb:active {
  background: #089de3;
}