How to make a more complex slider?

Question

css

I wrote the slider
myself f0186535.xsph.ru/java.html
Such a question, how are more complex slides made, roughly speaking, switching between slides is not just a change in left, but some squares appear there, all sorts of "blinds" effects Is this done in canvas?
For example, like here (in the left corner)
ksenia-sobchak.com

Answer 1

Canvas is not needed, and neither is fiddler.
Your slide is 1 div. If you break it into 20 divs, but each background will have the same image with an offset, you can achieve interesting effects.
That is, the animation will consist in changing not 1 div, but several.