.slider {
  -webkit-appearance: none;
  height: 8px;
  width: 160px;
  margin-bottom: 16px;
  border-radius: 4px;
  border: solid black 1px;
  background: white;
  outline: none;
  opacity: 0.8;
  -webkit-transition: .2s;
  transition: opacity .2s;
}

.slider:hover {
  opacity: 1;
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #042D43;
  cursor: pointer;
}

.slider::-moz-range-thumb {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #042D43;
  cursor: pointer;
}