slider.css

@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300&display=swap');


#rangeValue {
  position: relative;
  display: block;
  text-align: center;
  font-size: 6em;
  color: #999;
  font-weight: 400;
}
.range {
  grid-column: span 2;
  margin-left:10px;
  margin-top:5px;
  width: 200px;
  height: 15px;
  -webkit-appearance: none;
  background: #111;
  outline: none;
  border-radius: 15px;
  overflow: hidden;
  box-shadow: inset 0 0 5px rgba(0, 0, 0, 1);
}
.range::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: rgba(21, 183, 185, 1);
  cursor: pointer;
  border: 4px solid #333;
  box-shadow: -407px 0 0 400px rgba(21, 183, 185, 1);
}