input[type=range] {
  width: 200px;
  height: 20px;
  margin: 0;
  padding: 0;
  background-color: blue;
}

input[type=range]::-moz-range-progress {
  height: 10px;
  background-color: lime;
}

input[type=range]::-moz-range-track,
input[type=range]::-moz-range-thumb {
  visibility: hidden;
}