Why isn't the background-image working here

Question

Please check the following link http://jsfiddle.net/BbkBf/

I got two questions:
1. why is the background-image not working for the first one (you may say it's a tag is empty, but even then doesn't work).
2. why is the image not shown for the second img tag?

Is it some wordpress problem?

Answer 1

Because the domain in which the image is hosted is protected against hotlinking, meaning they won't let you load the image from their domain unless you are inside their domain. try uploading it to a different domain.

See example: http://jsfiddle.net/BbkBf/3/