Animated Background Image

Hello, how are you up here?

Well, i’m beginning my third site at webflow and i don’t have words to describe how fantastic it is. I’m almost learning something it has to offer, and that is awesome.

One of my Aquiles ankle it have been the animations and that kind of stuff…

I have a gif that my art director made, simulating how de site must navigate, but i don’t know how to make two important things to work:

1 - the city silhouette moving on the bg’s (each colo/page/section have it’s own)
2 - the navigation down-to-up

Here is the gif btw: http://ocrepusculo.com/wp-content/uploads/2014/08/Apresentacao-Nossa.gif

You guys can help me?

ps.: sorry about my english. :wink: