What is difference between html and xhtml?

Related questions

1. Can I convert HTML to XML?
2. Is xhtml still used 2018?
3. Is xhtml and XML same?
4. Is html5 a xhtml?
5. What is the primary function of xhtml?
6. What is xhtml 1.0 strict?
7. What is the full meaning of xhtml?
8. What is xhtml in computer?
9. Which is the latest HTML version?
10. Why is xhtml needed?

Tags

1. #extend
2. #languages
3. #extensible
4. #widely
5. #version
6. #markup
7. #family
8. #hypertext
9. #language
10. #versions
11. #pages
12. #based
13. #mirror
14. #stricter
15. #extended
16. #written
17. #xhtml
18. #which