Calculation of the 'All Menu' top

[Guido1982]

I'm working on my theme, and noticed the top value of the fold-out menu for all modules is hardcoded to 70px. This causes unwanted results even in the standard softed theme. I've been looking a bit, but can't find the JS that does this (or is it even coded into the TPL file?) Anyway, I can override this with an !important rule, but I think there should be a better fix for this. Besides this, I think it's better to handle the hover through CSS then via javascript, but this will break compatibility with existing themes I think.