Edit div tags in search section

I'm trying to test what happens when you search for an event by name. In order to make the test more fool proof I'd like to use `within` to see that the div with current events actually has current events in it, as does the past events. So I nested the `list_items` div and added an id to `list_description` that would update depending on whether a block was full of "current" or "past" events (derived from `<%= section %>`). Since I changed the css file I updated other instances of `id='list_items'` and `id='list_description'` to `class='list_items'` and `class='list_description'`` accordingly.