What is an xhtml file?

Related questions

1. What is HTML and CSS?
2. What makes a premise false?
3. What is valid conclusion?
4. What is a false conclusion?
5. What is code validation?
6. What is the importance of data validation?
7. Is w3 validation important?
8. Why is w3c important?
9. What is IQ OQ PQ?
10. What is validation therapy used for?

Tags

1. #pages
2. #websites
3. #application
4. #current
5. #include
6. #guidelines
7. #specification
8. #reformulation
9. #based
10. #either
11. #conform
12. #standard
13. #xhtml
14. #strict
15. #written