@mixin range () {

  position: relative;

  input[type="range"] {
    position: relative;
    width: 100%;
    padding: 0;
    margin: $input-range-my $input-range-mx;
    cursor: pointer;
    background-color: transparent;
    border: none;

    // Firefox
    border: 1px solid $white-base;
    outline: none;

    // Webkit
    appearance: none;

    &:focus {
      outline: none;
    }

    + .thumb {
      position: absolute;
      top: $input-range-thumb-top;
      width: 0;
      height: 0;
      margin-left: $input-range-thumb-margin-left;
      background-color: $primary-color;
      border: none;
      border-radius: $border-radius-circle;
      transform: $input-range-transform;
      transform-origin: $input-range-transform-origin;

      .value {
        display: block;
        width: $input-range-thumb-value-width;
        font-size: 0;
        color: $primary-color;
        text-align: center;
        transform: $input-range-thumb-value-transform;
      }

      &.active {
        border-radius: $border-radius-circle $border-radius-circle $border-radius-circle 0;

        .value {
          margin-top: $input-range-active-value-mt;
          margin-left: $input-range-active-value-ml;
          font-size: $input-range-active-value-font-size;
          color: $white-base;
        }
      }
    }

    &::-webkit-slider-runnable-track {
      height: $slider-runnable-track-height;
      background: $slider-runnable-track-bg;
      border: none;
    }

    &::-webkit-slider-thumb {
      width: $slider-thumb-width;
      height: $slider-thumb-height;
      margin: $slider-thumb-mt 0 0 0;
      background-color: $primary-color;
      border: none;
      border-radius: $border-radius-circle;
      transition: $slider-thumb-transition;
      transform-origin: $input-range-transform-origin;
      appearance: none;
    }

    &:focus::-webkit-slider-runnable-track {
      background: $slider-runnable-track-focus-bg;
    }

    /* fix for FF unable to apply focus style bug  */
    &::-moz-range-track {
      /* required for proper track sizing in FF */
      height: $slider-runnable-track-height;
      background: $slider-runnable-track-bg;
      border: none;
    }

    &::-moz-range-thumb {
      width: $slider-thumb-width;
      height: $slider-thumb-height;
      margin-top: $slider-thumb-mt;
      background: $primary-color;
      border: none;
      border-radius: $border-radius-circle;
    }

    &:-moz-focusring {
      /* hide the outline behind the border */
      outline: 1px solid $white-base;
      outline-offset: -1px;
    }

    &:focus::-moz-range-track {
      background: $slider-runnable-track-bg;
    }

    // IE 10+
    &::-ms-track {
      height: $slider-runnable-track-height;
      color: transparent;
      background: transparent;

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

      /* leave room for the larger thumb to overflow with a transparent border */
      border-width: $slider-border-width 0;

      /* remove default tick marks */
    }

    &::-ms-fill-lower {
      background: $slider-runnable-track-bg;
    }

    &::-ms-fill-upper {
      background: $slider-runnable-track-bg;
    }

    &::-ms-thumb {
      width: $slider-thumb-width;
      height: $slider-thumb-height;
      background: $primary-color;
      border: none;
      border-radius: $border-radius-circle;
    }

    &:focus::-ms-fill-lower {
      background: $slider-runnable-track-bg;
    }

    &:focus::-ms-fill-upper {
      background: $slider-runnable-track-bg;
    }
  }
}