As it is now on my site, whenever anything in the content expands or shrinks, the background moves like it was a curtain fixed to the bottom of the page. See the effect here: http://www.thevelvetroom.dk/portfolio-item/franny/ . When the slides have different heights you notice a slight movement of the whole background which I find distracting even if the movement is subtle.
So, how do I "anchor" the background to the top, so it never moves but off course is still free to expand downwards?
Thanks!














