When I look at the history of some post and switch to markdown diff, the left half of the diff overlaps the right part and both continue outside the screen.
For example, this history looks like this to me (notice the highlighted part and the scrollbar):
This makes the markdown version of the diff pretty much unusable, could this be fixed? It's most likely some problem with CSS.
This also seems to happen here on meta, but not on Stack Overflow.
I'm using Firefox 14.0.1 on Windows 7.