.progbar {
  -webkit-appearance: none;
  width: 100%;
  height: 25px;
  background: #E5E5E5;
  outline: none;
  -webkit-transition: .2s;
  transition: opacity .2s;
}

.progbar::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 25px;
  height: 25px;
  background: #3f51b5;
  cursor: pointer;
}

.progbar::-moz-range-thumb {
  width: 25px;
  height: 25px;
  background: #3f51b5;
  cursor: pointer;
}

a[name] {
  padding-top: 80px;
  margin-top: -80px;
  display: inline-block; /* required for webkit browsers */
}