.custom-video-control-bar .videojs-drm-volume-slider-container {
  width: 80px;
}
.custom-video-control-bar .videojs-drm-volume-slider {
  width: 100%;
  height: 4px;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
}

.custom-video-control-bar .videojs-drm-volume-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 12px;
  height: 12px;
  background: #fff;
  border-radius: 50%;
  cursor: pointer;
}

.custom-video-control-bar .videojs-drm-volume-slider::-moz-range-thumb {
  width: 12px;
  height: 12px;
  background: #fff;
  border-radius: 50%;
  cursor: pointer;
  border: none;
}

@media (max-width: 768px) {
  .custom-video-control-bar .videojs-drm-volume-slider-container {
    width: 60px;
  }

  .custom-video-control-bar .videojs-drm-volume-slider::-webkit-slider-thumb {
    width: 10px;
    height: 10px;
  }

  .custom-video-control-bar .videojs-drm-volume-slider::-moz-range-thumb {
    width: 10px;
    height: 10px;
  }
}

@media (max-width: 480px) {
  .custom-video-control-bar .videojs-drm-volume-slider-container {
    width: 40px;
  }

  .custom-video-control-bar .videojs-drm-volume-slider::-webkit-slider-thumb {
    width: 8px;
    height: 8px;
  }

  .custom-video-control-bar .videojs-drm-volume-slider::-moz-range-thumb {
    width: 8px;
    height: 8px;
  }
}