_range.scss

/* Range
   ========================================================================== */

.range-field {
  position: relative;
}

input[type=range],
input[type=range] + .thumb {
  @extend .no-select;
  cursor: pointer;
}

input[type=range] {
  position: relative;
  background-color: transparent;
  border: none;
  outline: none;
  width: 100%;
  margin: 15px 0;
  padding: 0;

  &:focus {
    outline: none;
  }
}

input[type=range] + .thumb {
  position: absolute;
  top: 10px;
  left: 0;
  border: none;
  height: 0;
  width: 0;
  border-radius: 50%;
  background-color: $radio-fill-color;
  margin-left: 7px;

  transform-origin: 50% 50%;
  transform: rotate(-45deg);

  .value {
    display: block;
    width: 30px;
    text-align: center;
    color: $radio-fill-color;
    font-size: 0;
    transform: rotate(45deg);
  }

  &.active {
    border-radius: 50% 50% 50% 0;

    .value {
      color: $input-background;
      margin-left: -1px;
      margin-top: 8px;
      font-size: 10px;
    }
  }
}

// WebKit
input[type=range] {
  -webkit-appearance: none;
}

input[type=range]::-webkit-slider-runnable-track {
  height: $track-height;
  background: #c2c0c2;
  border: none;
}

input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  border: none;
  height: $range-height;
  width: $range-width;
  border-radius: 50%;
  background-color: $radio-fill-color;
  transform-origin: 50% 50%;
  margin: -5px 0 0 0;
  transition: .3s;
}

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

// FireFox
input[type=range] {
  /* fix for FF unable to apply focus style bug  */
  border: 1px solid white;

  /*required for proper track sizing in FF*/
}

input[type=range]::-moz-range-track {
  height: $track-height;
  background: #ddd;
  border: none;
}

input[type=range]::-moz-range-thumb {
  border: none;
  height: $range-height;
  width: $range-width;
  border-radius: 50%;
  background: $radio-fill-color;
  margin-top: -5px;
}

// hide the outline behind the border
input[type=range]:-moz-focusring {
  outline: 1px solid #fff;
  outline-offset: -1px;
}

input[type=range]:focus::-moz-range-track {
  background: #ccc;
}

// IE 10+
input[type=range]::-ms-track {
  height: $track-height;

  // remove bg colour from the track, we'll use ms-fill-lower and ms-fill-upper instead
  background: transparent;

  // leave room for the larger thumb to overflow with a transparent border */
  border-color: transparent;
  border-width: 6px 0;

  /*remove default tick marks*/
  color: transparent;
}

input[type=range]::-ms-fill-lower {
  background: #777;
}

input[type=range]::-ms-fill-upper {
  background: #ddd;
}

input[type=range]::-ms-thumb {
  border: none;
  height: $range-height;
  width: $range-width;
  border-radius: 50%;
  background: $radio-fill-color;
}

input[type=range]:focus::-ms-fill-lower {
  background: #888;
}

input[type=range]:focus::-ms-fill-upper {
  background: #ccc;
}