It seems that it breaks the TreeView with IE10 (see bug.png).
If you remove this padding, the TreeView works well again (see: without_padding.png). But we cannot remove the padding for every tables of the wiki!
Then, if you try to write a specific CSS selector to remove the padding only on tables that are on the TreeView... it still does not work!
I suppose that the TreeView tries to reproduce the behaviour of standard tables, and for some reasons, it fails on IE 8-9-10.
I don't have any clue to fix this. I have tried for hours to write specific CSS rules without any success.
I have also tried to not apply the .table mix-in on every tables, but only on tables that are inside the main container:
You can see the results in attempt1.png...