Question

http://www.kampyle.com/ in this url when you scroll one picture always moves. I want to know this process name. How can they do it? After clicking this picture it’s vanished and never appears even on refreshing the page. How do they get information that I clicked this picture? It will be helpful for me if someone gives me the solution.

Answer 1

They just set the anchor that contains the image to:

position:absolute;
right:0;
bottom:0;

It’s called absolute positioning.

As for only showing it once, that can be handled with a cookie or with a session variable.