Swiftv3 - from the ground i will rise


Im not really sure how to word this but here goes…

I was looking at this site [erain homepage] and on the main SWF movie it has three chambers which appear to be emerging from the floor this effect appears throughout the site and i have seen a similar effect on whosweV1 [the mobile phone] and other sites… but i wanna no how i can do it… can you help??