From time to time I have used many animated gifs on my posts. You can see one above. I love them. So, what are they?
The GIF design allows users to define new blocks. In the 1990s, Netscape designed the Netscape Application Block, which indicates that the file is an animation and not a static image. This was first supported in Netscape 2.0 and spread to other browsers. It is still in wide use today.
Mm ... A bit technical for me. Anyway, here are some examples. Enjoy ...
Clancy's comment: Now you know why I use them. They add life to a blog. Brilliant, eh?