ondrag on ul but move children

[justcasper]

hello,

i need to create an animation where every child (il) of an ul have get to the left when the user drags the ul. after it reached left side it have to go up. For this i started like this:
https://jsfiddle.net/1hxmf24u/4/
it works fine until the moment i the elements that sticks to left have to move again. When i implement that the distances between the il-elements crashes. can someone help me?

[justcasper]

i could solve it on my own. This is the solution:

https://jsfiddle.net/vebuxzjc/1/