Drag and drop with dynamic content

Drag and drop with dynamic content


I have two <ul></ul>lists side by side and I want to drag one line
from left list to right list. The content comes from a .load() call.
My problem is that when I drag, the element disappears at the edge of
the <ul> block, like if there was a mask around the <ul> block.
I don't think it has to do with option "containment" since it does not
block at edges, it's just like if it was underneath everything (except
for the dynamic content block (its father) ).
zIndex is very high.
Is there a way to drag/drop anywhere on the page with dynamic
content ?
Thanks for your help,