yt-custom-player/src/YouTubeVideo/Controls/PlayPauseButton/styles.css

> A library for styling and customizing the YouTube player in React.

.playPauseButton {
  background: transparent;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}