.volume-slider-vertical{-moz-appearance:none;appearance:none;-webkit-appearance:none;writing-mode:vertical-lr;direction:rtl;height:80px;width:6px;background:#131216;border-radius:20px;outline:none;cursor:pointer;transition:background .3s ease-in-out}.volume-slider-vertical::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:14px;height:14px;border-radius:50%;background:#fff;cursor:pointer;margin-top:-4px}.volume-slider-vertical::-moz-range-thumb{width:14px;height:14px;background:#fff;border-radius:50%;border:none;cursor:pointer}