What is html5 format?

Related questions

1. Does Chrome use html5?
2. Why html5 is not based on SGML?
3. Does ie10 support html5?
4. What is the purpose of html5?
5. What are the advantages of html5?
6. What is the difference between html5 and css3?
7. What is the difference between html5 and html4?
8. What is special about html5?
9. Why we use html5 instead of HTML?
10. What are the main features of html5?

Tags

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2. #adobe
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4. #should
5. #agreement
6. #intended
7. #proprietary
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14. #video
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16. #which
17. #coding
18. #standard
19. #audio
20. #hampered
21. #html5
22. #adoption
23. #formats
24. #flash
25. #early