On this question, the answer text is out of alignment with the rest of the page and is pushed into the voting buttons:
Every other question I've seen on this site lines up more neatly, like this:
I wondered what caused this difference. I noticed that this post begins with "3000." and wondered if this was confusing Markdown somehow. It didn't actually render it as a numbered list; that would have been indented, not outdented. To test the theory I temporarily edited the post to begin "You need 3000." instead, and the formatting was then fine. (I then reverted that edit to leave the evidence in place for this bug report.)
Whether the text gets interpreted as text or as the first item in a numbered list, I didn't expect it to be able to escape its borders.