Tabs animation

Goodday, i’m pretty new with this amazing framework.
I’m trying to achieve a tab animation when switching between different tabs, such as the one in this example:

but if i try this with the current version 1.0.0 it does not work.
Any clue?
Thanks!

Hello! So that codepen is rather old, and referencing an old version of ionic.
Tab animations were removed in beta 14 and are not possible right now.