What is a responsive iframe?

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Tags

1. #iframes
2. #width
3. #content
4. #responsive
5. #cannot
6. #video
7. #example
8. #declared
9. #because
10. #webpage
11. #displaying
12. #works
13. #embedded
14. #height
15. #container
16. #since
17. #youtube
18. #fiddle
19. #iframe