audio {
  width: 100%;
  margin: 20px 0;
}

audio::-webkit-media-controls-panel {
   background: linear-gradient(to right, #FFA500, #FFD700);
  border-radius: 10px;
}

audio::-webkit-media-controls-play-button,
audio::-webkit-media-controls-pause-button {
  width: 40px;
  height: 40px;
  background-color: #fff;
  border-radius: 100%;
  color: white;
  font-size: 20px;
  line-height: 40px;
  text-align: center;
  cursor: pointer;
}

audio::-webkit-media-controls-volume-slider-container {
  margin-right: 20px;
}

audio::-webkit-media-controls-volume-slider {
  background-color: transparent;
  height: 4px;
}

audio::-webkit-media-controls-volume-slider::-webkit-slider-thumb {
  background-color: #ff0000;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  cursor: wait;
}