css interview questions

I thought of sharing few questions which pop’s up each time when you come across any interview.
Hope this list will be helpful

1. What is CSS?
2. What is import in CSS?
3. What are Doctypes?
4. What is position by default?
5. What is position is CSS?
6. What is difference between float and display inline?
7. What is box model?
8. What are issues with box model in IE?
9. What are pseudo classes in css?
10. what is css specificity?
11. what are different types of doctype?
12. difference b/w display inline & display block.
13. what do you mean by inline style?
14. what is javascript?
15. what are the functions of javascript?
16. what are inline elements and block level elements?
17. what are forms?
18. what do you mean grouping?
19. difference b/w id and class.
20. what are the difference position relative and position absolute?
21. most common issues with IE.
22. Box model issues with IE.
23. what do you mean by reset css?
24. which tag is used for headings?

feel free to add more. I will surely add few more and with answers too. keep waiting