✅Press 'x' to slow down, press 'c' to speed up, and press 'z' to the original speed or back to the last rate when the video is playing on the website of Bilibili.
✅Press 'f' to full screen or unfull screen of playing.
✅The acceleration and deceleration doubling ratio is 0.2.
✅Can remember the play speed next time whether the browser is closed.
✅📢Congratulations! It supports multiple tabs of multiple play rates respectively for the website of Bilibili.