slider.css

input[type=range] {
  -webkit-appearance: none;
  margin-top: 15px;
  margin-bottom: 15px;
}

input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
}

input[type=range]:focus {
  outline: none;
}

input[type=range]::-ms-track {
  cursor: pointer;
  background: transparent;
  border-color: transparent;
  color: transparent;
}

input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  height: 36px;
  width: 16px;
  background-color:#444;
  cursor: pointer;
  margin-top:-15px;
}

input[type=range]::-moz-range-thumb {
  margin-top:-15px;
  height: 36px;
  width: 16px;
  background-color:#444;
  cursor: pointer;
}

input[type=range]::-ms-thumb {
  margin-top:-15px;
  height: 36px;
  width: 16px;
  background-color:#444;
  cursor: pointer;
}

input[type=range]::-webkit-slider-runnable-track {
  height: 5px;
  cursor: pointer;
  background-color: #aaa;
}

input[type=range]:focus::-webkit-slider-runnable-track {
  background: #aaa;
}

input[type=range]::-moz-range-track {
  height: 5px;
  cursor: pointer;
  background-color: #aaa;
}

input[type=range]::-ms-track {
  height: 5px;
  cursor: pointer;
  background-color: #aaa;
}
input[type=range]::-ms-fill-lower {
  height: 5px;
  cursor: pointer;
  background-color: #aaa;
}
input[type=range]:focus::-ms-fill-lower {
  background: #aaa;
}
input[type=range]::-ms-fill-upper {
  height: 5px;
  cursor: pointer;
  background-color: #aaa;
}
input[type=range]:focus::-ms-fill-upper {
  background: #aaa;
}