If you've run out of unread items, we tell you to wait for some new ones
or subscribe to more feeds. (Better than just showing a blank screen.)
Not trampling on the CSS that comes down from an article.

IE, I'd been using a "div#items ul li" selector, which meant that
everything in the article took on that CSS that I defined. Switching it
to "div#items > ul > li" solves that.
Now when you zoom in (on mobile) the items list goes on top of the
groups list.