Vertical positioning doesn't take margins into account

[neilb]

If guiders are attached to elements that are in an element with a top margin, then the vertical position of the guiders is wrong by the amount of the margin.

For example, if I have the following structure:

body -> div.content -> table -> various elements with guiders

The div.content has a relatively large margin-top, and the guiders are all off-position by the size of that margin. I've confirmed this by "fixing" it for myself with the following hack:

top -= ($("div.content").outerHeight(true) - $("div.content").outerHeight(false));

But that's not a portable solution :-)

This is true (ie broken) on Firefox 21, Chrome 28, Safari 6.0.5, IE 10, and I expect on earlier versions of IE as well.