In many shorter articles such as this one, the infobox is longer than the article text. The gray bar at the bottom of the page still appears at the end of the article text, though, so it obscures part of the infobox.
Topic on Talk:Winter
TheCatalyst31: This is listed on the main page as one of the known issues. Below it, it says "This only affects the prototype; it's part of the way it is constructed."
TheCatalyst31: I'm just going to echo what JamesDouch said. It's a prototype-only bug.