Does YouTube use html5 video?

Related questions

1. How do you embed a video player using?
2. Does iOS Safari support html5?
3. Does html5 use JavaScript?
4. How do I embed a video in HTML?
5. Why do we need html5?
6. Does Firefox use html5?
7. How does html5 video work?
8. What is html5 player?
9. How do I convert mp4 to html5?
10. Does html5 work on iPhone?

Tags

1. #browser
2. #chrome
3. #safari
4. #finally
5. #defaulting
6. #using
7. #flash
8. #versions
9. #firefox
10. #google
11. #html5
12. #player
13. #today
14. #mozilla
15. #apple
16. #microsoft
17. #video
18. #youtube
19. #default
20. #announced
21. #adobe
22. #stopped