.#{$prefix}-ui-volumeslider {
  @extend %ui-seekbar;

  //
}

.#{$prefix}-ui-volumeslider {
  @extend %ui-seekbar;

  .#{$prefix}-seekbar {
    .#{$prefix}-seekbar-bufferlevel {
      display: none;
    }
  }
}

Fix VolumeSlider legacy skin style
Fix VolumeSlider legacy skin style
