Centering items in vertical list.

I have a component that displays vertical list. This list is centered vertically in div ( via margin:auto). List itself works correctly but when i click on element and try to drag it goes left to side of the div (margin auto stopped working).

What should i do to have element centered after dragging him up or down?

No file, test, or entry point is named. Reproduce the vertical list with a vertically centered container, drag an item up or down, and trace the component path responsible for its position. Done means the dragged item remains centered within the container after movement.

Written by the indexing model from the issue text.